./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/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 269c6e32b98d41be14ec8894bc32516e2df9c183 ....................................................................................................................................................................................................................................................................................................................................... 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_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/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 269c6e32b98d41be14ec8894bc32516e2df9c183 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 12:39:04,667 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:39:04,667 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:39:04,673 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:39:04,673 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:39:04,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:39:04,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:39:04,675 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:39:04,676 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:39:04,676 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:39:04,677 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:39:04,677 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:39:04,677 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:39:04,678 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:39:04,678 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:39:04,679 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:39:04,679 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:39:04,680 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:39:04,681 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:39:04,681 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:39:04,682 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:39:04,682 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:39:04,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:39:04,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:39:04,684 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:39:04,684 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:39:04,685 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:39:04,685 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:39:04,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:39:04,686 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:39:04,686 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:39:04,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:39:04,686 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:39:04,686 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:39:04,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:39:04,687 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:39:04,687 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 12:39:04,694 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:39:04,694 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:39:04,695 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:39:04,695 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:39:04,695 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 12:39:04,695 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 12:39:04,695 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 12:39:04,695 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 12:39:04,695 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 12:39:04,696 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 12:39:04,696 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 12:39:04,696 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 12:39:04,696 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 12:39:04,696 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:39:04,696 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:39:04,696 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:39:04,696 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:39:04,697 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:39:04,697 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:39:04,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:39:04,698 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:39:04,698 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:39:04,698 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:39:04,698 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 12:39:04,698 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:39:04,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 12:39:04,698 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 12:39:04,698 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_fc283542-47ca-43d7-8be7-0befe8423f7a/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 -> 269c6e32b98d41be14ec8894bc32516e2df9c183 [2018-12-02 12:39:04,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:39:04,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:39:04,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:39:04,725 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:39:04,725 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:39:04,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-12-02 12:39:04,760 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/6bc9db9b6/26737366ca7d456bacbc2ad9d87cb908/FLAG9543f2e4d [2018-12-02 12:39:05,088 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:39:05,089 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/sv-benchmarks/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-12-02 12:39:05,093 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/6bc9db9b6/26737366ca7d456bacbc2ad9d87cb908/FLAG9543f2e4d [2018-12-02 12:39:05,495 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/6bc9db9b6/26737366ca7d456bacbc2ad9d87cb908 [2018-12-02 12:39:05,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:39:05,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:39:05,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:39:05,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:39:05,500 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:39:05,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706fcb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05, skipping insertion in model container [2018-12-02 12:39:05,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:39:05,520 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:39:05,621 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:39:05,623 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:39:05,638 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:39:05,650 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:39:05,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05 WrapperNode [2018-12-02 12:39:05,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:39:05,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:39:05,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:39:05,651 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:39:05,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:39:05,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:39:05,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:39:05,665 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:39:05,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... [2018-12-02 12:39:05,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:39:05,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:39:05,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:39:05,714 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:39:05,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:39:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 12:39:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 12:39:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-02 12:39:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-02 12:39:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:39:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:39:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 12:39:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 12:39:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-02 12:39:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-02 12:39:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:39:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:39:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 12:39:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:39:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:39:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 12:39:05,876 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:39:05,876 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 12:39:05,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:05 BoogieIcfgContainer [2018-12-02 12:39:05,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:39:05,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:39:05,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:39:05,878 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:39:05,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:39:05" (1/3) ... [2018-12-02 12:39:05,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69377bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:39:05, skipping insertion in model container [2018-12-02 12:39:05,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:05" (2/3) ... [2018-12-02 12:39:05,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69377bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:39:05, skipping insertion in model container [2018-12-02 12:39:05,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:05" (3/3) ... [2018-12-02 12:39:05,880 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a_true-unreach-call.c [2018-12-02 12:39:05,886 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:39:05,890 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 12:39:05,900 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 12:39:05,917 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:39:05,918 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:39:05,918 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:39:05,918 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:39:05,918 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:39:05,918 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:39:05,918 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:39:05,918 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:39:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-02 12:39:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 12:39:05,931 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:39:05,931 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:39:05,933 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:39:05,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:39:05,936 INFO L82 PathProgramCache]: Analyzing trace with hash -305625155, now seen corresponding path program 1 times [2018-12-02 12:39:05,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:39:05,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:39:05,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:39:05,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:39:05,968 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:39:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:39:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:39:06,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:39:06,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 12:39:06,016 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:39:06,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 12:39:06,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 12:39:06,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 12:39:06,028 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-02 12:39:06,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:39:06,041 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-12-02 12:39:06,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 12:39:06,041 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-02 12:39:06,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:39:06,047 INFO L225 Difference]: With dead ends: 76 [2018-12-02 12:39:06,047 INFO L226 Difference]: Without dead ends: 38 [2018-12-02 12:39:06,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 12:39:06,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-02 12:39:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-02 12:39:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 12:39:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-12-02 12:39:06,071 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-12-02 12:39:06,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:39:06,071 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-12-02 12:39:06,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 12:39:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-12-02 12:39:06,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 12:39:06,072 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:39:06,072 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:39:06,072 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:39:06,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:39:06,073 INFO L82 PathProgramCache]: Analyzing trace with hash -231212118, now seen corresponding path program 1 times [2018-12-02 12:39:06,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:39:06,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:39:06,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:39:06,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:39:06,073 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:39:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:39:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:39:06,138 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 12:39:06,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:39:06 BoogieIcfgContainer [2018-12-02 12:39:06,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:39:06,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:39:06,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:39:06,156 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:39:06,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:05" (3/4) ... [2018-12-02 12:39:06,158 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 12:39:06,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:39:06,159 INFO L168 Benchmark]: Toolchain (without parser) took 661.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 948.6 MB in the beginning and 1.0 GB in the end (delta: -96.8 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:06,160 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:39:06,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:06,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.10 ms. Allocated memory is still 1.0 GB. Free memory was 937.8 MB in the beginning and 935.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:06,161 INFO L168 Benchmark]: Boogie Preprocessor took 48.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 935.1 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:06,161 INFO L168 Benchmark]: RCFGBuilder took 162.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:06,162 INFO L168 Benchmark]: TraceAbstraction took 279.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:06,162 INFO L168 Benchmark]: Witness Printer took 2.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:06,164 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.10 ms. Allocated memory is still 1.0 GB. Free memory was 937.8 MB in the beginning and 935.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 935.1 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 162.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 279.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450950, huge_floor=1000000000000000000000000000000] [L75] float x = 1.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L76] CALL, EXPR floor_float(x) VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, x=6442450954] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=2147483647, j0=2147483520, x=6442450954] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=2147483647, j0=2147483520, x=6442450954] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] return x + x; VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=2147483647, j0=2147483520, x=6442450954] [L76] RET, EXPR floor_float(x) VAL [floor_float(x)=6442450946, huge_floor=1000000000000000000000000000000, x=6442450954] [L76] float res = floor_float(x); [L79] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450946, huge_floor=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=6442450946, huge_floor=1000000000000000000000000000000, x=6442450946] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450946, \result=0, huge_floor=1000000000000000000000000000000, ix=0, x=6442450946] [L79] RET, EXPR isinf_float(res) VAL [huge_floor=1000000000000000000000000000000, isinf_float(res)=0, res=6442450946, x=6442450954] [L79] COND TRUE !isinf_float(res) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450946, x=6442450954] - 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: 50 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-02 12:39:07,480 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:39:07,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:39:07,490 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:39:07,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:39:07,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:39:07,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:39:07,493 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:39:07,494 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:39:07,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:39:07,495 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:39:07,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:39:07,496 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:39:07,497 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:39:07,498 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:39:07,498 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:39:07,499 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:39:07,500 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:39:07,501 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:39:07,502 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:39:07,503 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:39:07,504 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:39:07,505 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:39:07,505 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:39:07,505 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:39:07,506 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:39:07,506 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:39:07,506 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:39:07,507 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:39:07,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:39:07,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:39:07,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:39:07,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:39:07,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:39:07,508 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:39:07,509 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:39:07,509 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 12:39:07,516 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:39:07,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:39:07,517 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:39:07,517 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:39:07,517 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 12:39:07,517 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 12:39:07,517 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 12:39:07,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:39:07,518 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:39:07,519 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:39:07,519 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:39:07,519 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:39:07,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:39:07,520 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 12:39:07,520 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:39:07,520 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 12:39:07,520 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 12:39:07,520 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_fc283542-47ca-43d7-8be7-0befe8423f7a/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 -> 269c6e32b98d41be14ec8894bc32516e2df9c183 [2018-12-02 12:39:07,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:39:07,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:39:07,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:39:07,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:39:07,548 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:39:07,548 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-12-02 12:39:07,584 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/5d149a405/f227afb96fbe424da7cb8c2eb28da477/FLAG6ab9526e4 [2018-12-02 12:39:08,003 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:39:08,003 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/sv-benchmarks/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-12-02 12:39:08,007 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/5d149a405/f227afb96fbe424da7cb8c2eb28da477/FLAG6ab9526e4 [2018-12-02 12:39:08,015 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/data/5d149a405/f227afb96fbe424da7cb8c2eb28da477 [2018-12-02 12:39:08,017 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:39:08,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:39:08,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:39:08,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:39:08,020 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:39:08,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ba15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08, skipping insertion in model container [2018-12-02 12:39:08,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:39:08,036 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:39:08,135 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:39:08,139 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:39:08,156 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:39:08,171 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:39:08,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08 WrapperNode [2018-12-02 12:39:08,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:39:08,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:39:08,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:39:08,173 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:39:08,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:39:08,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:39:08,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:39:08,193 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:39:08,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... [2018-12-02 12:39:08,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:39:08,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:39:08,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:39:08,216 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:39:08,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:39:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-02 12:39:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-02 12:39:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:39:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:39:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 12:39:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 12:39:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-02 12:39:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-02 12:39:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:39:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:39:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 12:39:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:39:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:39:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 12:39:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 12:39:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 12:39:08,381 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:39:08,533 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:39:08,697 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:39:08,697 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 12:39:08,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:08 BoogieIcfgContainer [2018-12-02 12:39:08,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:39:08,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:39:08,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:39:08,700 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:39:08,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:39:08" (1/3) ... [2018-12-02 12:39:08,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2626fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:39:08, skipping insertion in model container [2018-12-02 12:39:08,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:08" (2/3) ... [2018-12-02 12:39:08,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2626fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:39:08, skipping insertion in model container [2018-12-02 12:39:08,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:08" (3/3) ... [2018-12-02 12:39:08,702 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a_true-unreach-call.c [2018-12-02 12:39:08,707 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:39:08,711 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 12:39:08,720 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 12:39:08,736 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 12:39:08,736 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:39:08,736 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:39:08,737 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:39:08,737 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:39:08,737 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:39:08,737 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:39:08,737 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:39:08,737 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:39:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-02 12:39:08,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 12:39:08,750 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:39:08,750 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:39:08,751 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:39:08,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:39:08,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1515461369, now seen corresponding path program 1 times [2018-12-02 12:39:08,757 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:39:08,757 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-02 12:39:08,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:39:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:39:08,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:39:08,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:39:08,820 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:39:08,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:39:08,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 12:39:08,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 12:39:08,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 12:39:08,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 12:39:08,839 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-12-02 12:39:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:39:08,853 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2018-12-02 12:39:08,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 12:39:08,854 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-02 12:39:08,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:39:08,861 INFO L225 Difference]: With dead ends: 74 [2018-12-02 12:39:08,862 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 12:39:08,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 12:39:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 12:39:08,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-02 12:39:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 12:39:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-12-02 12:39:08,889 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2018-12-02 12:39:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:39:08,890 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-12-02 12:39:08,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 12:39:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-12-02 12:39:08,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 12:39:08,891 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:39:08,891 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:39:08,891 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:39:08,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:39:08,892 INFO L82 PathProgramCache]: Analyzing trace with hash -521696202, now seen corresponding path program 1 times [2018-12-02 12:39:08,892 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:39:08,892 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 12:39:08,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:39:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:39:08,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:39:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:39:09,395 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:39:09,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:39:09,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-02 12:39:09,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 12:39:09,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 12:39:09,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-02 12:39:09,404 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 11 states. [2018-12-02 12:39:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:39:10,816 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-12-02 12:39:10,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 12:39:10,816 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-12-02 12:39:10,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:39:10,818 INFO L225 Difference]: With dead ends: 46 [2018-12-02 12:39:10,818 INFO L226 Difference]: Without dead ends: 39 [2018-12-02 12:39:10,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-02 12:39:10,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-02 12:39:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-12-02 12:39:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 12:39:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-12-02 12:39:10,825 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2018-12-02 12:39:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:39:10,826 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-12-02 12:39:10,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 12:39:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-12-02 12:39:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 12:39:10,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:39:10,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:39:10,827 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:39:10,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:39:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash -815099209, now seen corresponding path program 1 times [2018-12-02 12:39:10,828 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:39:10,828 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 12:39:10,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:39:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:39:10,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:39:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:39:10,929 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:39:10,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:39:10,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 12:39:10,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 12:39:10,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 12:39:10,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 12:39:10,937 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-12-02 12:39:11,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:39:11,633 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-12-02 12:39:11,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 12:39:11,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-02 12:39:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:39:11,635 INFO L225 Difference]: With dead ends: 59 [2018-12-02 12:39:11,635 INFO L226 Difference]: Without dead ends: 42 [2018-12-02 12:39:11,636 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-02 12:39:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-02 12:39:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-12-02 12:39:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-02 12:39:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-12-02 12:39:11,640 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2018-12-02 12:39:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:39:11,640 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-12-02 12:39:11,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 12:39:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-12-02 12:39:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 12:39:11,641 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:39:11,641 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:39:11,641 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:39:11,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:39:11,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1280692241, now seen corresponding path program 1 times [2018-12-02 12:39:11,642 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:39:11,642 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-02 12:39:11,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:39:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:39:11,686 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:39:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:39:11,763 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:39:11,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:39:11,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 12:39:11,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 12:39:11,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 12:39:11,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 12:39:11,774 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 7 states. [2018-12-02 12:39:12,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:39:12,388 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-12-02 12:39:12,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 12:39:12,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-02 12:39:12,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:39:12,389 INFO L225 Difference]: With dead ends: 42 [2018-12-02 12:39:12,389 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 12:39:12,390 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-02 12:39:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 12:39:12,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 12:39:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 12:39:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 12:39:12,390 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-02 12:39:12,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:39:12,390 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:39:12,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 12:39:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 12:39:12,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 12:39:12,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 12:39:12,443 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-12-02 12:39:12,443 INFO L444 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-02 12:39:12,444 INFO L448 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2018-12-02 12:39:12,444 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-12-02 12:39:12,444 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-12-02 12:39:12,444 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-12-02 12:39:12,444 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:39:12,444 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:39:12,444 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:39:12,444 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-12-02 12:39:12,444 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-12-02 12:39:12,445 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-12-02 12:39:12,445 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-12-02 12:39:12,445 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-12-02 12:39:12,445 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-12-02 12:39:12,445 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-12-02 12:39:12,445 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-02 12:39:12,445 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-12-02 12:39:12,445 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L451 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-12-02 12:39:12,446 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:39:12,447 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 12:39:12,447 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:39:12,447 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:39:12,447 INFO L448 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-12-02 12:39:12,447 INFO L444 ceAbstractionStarter]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-02 12:39:12,447 INFO L448 ceAbstractionStarter]: For program point L79-1(lines 79 82) no Hoare annotation was computed. [2018-12-02 12:39:12,447 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-12-02 12:39:12,447 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-12-02 12:39:12,448 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-12-02 12:39:12,448 INFO L448 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-12-02 12:39:12,448 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-12-02 12:39:12,448 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-12-02 12:39:12,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:39:12 BoogieIcfgContainer [2018-12-02 12:39:12,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:39:12,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:39:12,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:39:12,459 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:39:12,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:08" (3/4) ... [2018-12-02 12:39:12,462 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 12:39:12,467 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-02 12:39:12,467 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 12:39:12,468 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-12-02 12:39:12,468 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 12:39:12,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-02 12:39:12,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-02 12:39:12,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 12:39:12,496 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 12:39:12,496 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 12:39:12,512 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fc283542-47ca-43d7-8be7-0befe8423f7a/bin-2019/utaipan/witness.graphml [2018-12-02 12:39:12,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:39:12,512 INFO L168 Benchmark]: Toolchain (without parser) took 4495.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 928.0 MB in the end (delta: 16.8 MB). Peak memory consumption was 163.0 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:12,513 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:39:12,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.28 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:12,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.09 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:12,514 INFO L168 Benchmark]: Boogie Preprocessor took 22.56 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:39:12,514 INFO L168 Benchmark]: RCFGBuilder took 481.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:12,514 INFO L168 Benchmark]: TraceAbstraction took 3760.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.8 MB in the end (delta: 179.0 MB). Peak memory consumption was 179.0 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:12,514 INFO L168 Benchmark]: Witness Printer took 53.53 ms. Allocated memory is still 1.2 GB. Free memory was 934.8 MB in the beginning and 928.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 12:39:12,516 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.28 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.09 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.56 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 481.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3760.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.8 MB in the end (delta: 179.0 MB). Peak memory consumption was 179.0 MB. Max. memory is 11.5 GB. * Witness Printer took 53.53 ms. Allocated memory is still 1.2 GB. Free memory was 934.8 MB in the beginning and 928.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 59]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 121 SDtfs, 163 SDslu, 396 SDs, 0 SdLazy, 264 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 11 QuantifiedInterpolants, 11309 SizeOfPredicates, 14 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...