./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_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_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 ............................................................................................................................................................................................................................................................................................................................ 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_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 07:42:33,816 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:42:33,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:42:33,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:42:33,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:42:33,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:42:33,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:42:33,828 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:42:33,829 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:42:33,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:42:33,830 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:42:33,830 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:42:33,830 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:42:33,831 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:42:33,831 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:42:33,832 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:42:33,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:42:33,833 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:42:33,834 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:42:33,835 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:42:33,835 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:42:33,836 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:42:33,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:42:33,837 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:42:33,837 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:42:33,838 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:42:33,838 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:42:33,838 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:42:33,839 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:42:33,840 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:42:33,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:42:33,840 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:42:33,840 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:42:33,841 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:42:33,841 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:42:33,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:42:33,842 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 07:42:33,851 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:42:33,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:42:33,852 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:42:33,852 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:42:33,852 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:42:33,852 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:42:33,852 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:42:33,852 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:42:33,853 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:42:33,853 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:42:33,853 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:42:33,853 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:42:33,853 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:42:33,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:42:33,854 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:42:33,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:42:33,854 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:42:33,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:42:33,854 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:42:33,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:42:33,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:42:33,855 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:42:33,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:42:33,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:42:33,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:42:33,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:42:33,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:42:33,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:42:33,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:42:33,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:42:33,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:42:33,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:42:33,857 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:42:33,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:42:33,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:42:33,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:42:33,857 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_b1c701d5-5025-4670-a041-a473ec04b087/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 -> 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 [2018-12-03 07:42:33,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:42:33,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:42:33,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:42:33,889 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:42:33,890 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:42:33,890 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-12-03 07:42:33,927 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/394c38249/d395d614181b464395cade7008c610ad/FLAG00db1bde2 [2018-12-03 07:42:34,338 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:42:34,338 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-12-03 07:42:34,342 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/394c38249/d395d614181b464395cade7008c610ad/FLAG00db1bde2 [2018-12-03 07:42:34,350 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/394c38249/d395d614181b464395cade7008c610ad [2018-12-03 07:42:34,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:42:34,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:42:34,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:42:34,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:42:34,355 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:42:34,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f41b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34, skipping insertion in model container [2018-12-03 07:42:34,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:42:34,372 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:42:34,471 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:42:34,474 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:42:34,495 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:42:34,509 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:42:34,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34 WrapperNode [2018-12-03 07:42:34,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:42:34,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:42:34,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:42:34,510 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:42:34,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:42:34,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:42:34,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:42:34,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:42:34,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... [2018-12-03 07:42:34,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:42:34,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:42:34,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:42:34,585 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:42:34,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 [2018-12-03 07:42:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 07:42:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 07:42:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-03 07:42:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-03 07:42:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:42:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:42:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 07:42:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 07:42:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-03 07:42:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-03 07:42:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:42:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:42:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 07:42:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:42:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:42:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 07:42:34,780 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:42:34,781 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-03 07:42:34,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:42:34 BoogieIcfgContainer [2018-12-03 07:42:34,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:42:34,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:42:34,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:42:34,784 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:42:34,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:42:34" (1/3) ... [2018-12-03 07:42:34,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4e987c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:42:34, skipping insertion in model container [2018-12-03 07:42:34,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:34" (2/3) ... [2018-12-03 07:42:34,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4e987c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:42:34, skipping insertion in model container [2018-12-03 07:42:34,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:42:34" (3/3) ... [2018-12-03 07:42:34,786 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b_true-unreach-call.c [2018-12-03 07:42:34,794 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:42:34,799 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:42:34,809 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:42:34,827 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:42:34,828 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:42:34,828 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:42:34,828 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:42:34,828 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:42:34,828 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:42:34,828 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:42:34,828 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:42:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-03 07:42:34,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 07:42:34,841 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:42:34,842 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] [2018-12-03 07:42:34,843 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:42:34,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:42:34,846 INFO L82 PathProgramCache]: Analyzing trace with hash -305625155, now seen corresponding path program 1 times [2018-12-03 07:42:34,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:42:34,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:42:34,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:42:34,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:42:34,875 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:42:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:42:34,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:42:34,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:42:34,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:42:34,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:42:34,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 07:42:34,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 07:42:34,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 07:42:34,940 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-03 07:42:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:42:34,953 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-12-03 07:42:34,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 07:42:34,954 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-03 07:42:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:42:34,959 INFO L225 Difference]: With dead ends: 76 [2018-12-03 07:42:34,960 INFO L226 Difference]: Without dead ends: 38 [2018-12-03 07:42:34,962 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 [2018-12-03 07:42:34,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-03 07:42:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-03 07:42:34,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-03 07:42:34,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-12-03 07:42:34,987 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-12-03 07:42:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:42:34,987 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-12-03 07:42:34,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 07:42:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-12-03 07:42:34,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 07:42:34,988 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:42:34,988 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] [2018-12-03 07:42:34,988 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:42:34,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:42:34,988 INFO L82 PathProgramCache]: Analyzing trace with hash -231212118, now seen corresponding path program 1 times [2018-12-03 07:42:34,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:42:34,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:42:34,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:42:34,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:42:34,990 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:42:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:42:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:42:35,062 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 07:42:35,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:42:35 BoogieIcfgContainer [2018-12-03 07:42:35,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:42:35,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:42:35,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:42:35,082 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:42:35,082 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:42:34" (3/4) ... [2018-12-03 07:42:35,085 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 07:42:35,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:42:35,086 INFO L168 Benchmark]: Toolchain (without parser) took 733.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -101.1 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:35,087 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:42:35,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.71 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 940.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:35,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:35,088 INFO L168 Benchmark]: Boogie Preprocessor took 23.32 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:35,089 INFO L168 Benchmark]: RCFGBuilder took 196.71 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:35,089 INFO L168 Benchmark]: TraceAbstraction took 299.91 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:35,089 INFO L168 Benchmark]: Witness Printer took 3.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:42:35,091 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 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.71 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 940.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.32 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 196.71 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 299.91 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 [2018-12-03 07:42:36,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:42:36,354 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:42:36,360 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:42:36,360 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:42:36,361 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:42:36,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:42:36,362 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:42:36,363 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:42:36,363 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:42:36,364 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:42:36,364 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:42:36,364 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:42:36,365 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:42:36,365 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:42:36,366 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:42:36,366 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:42:36,367 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:42:36,368 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:42:36,369 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:42:36,369 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:42:36,370 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:42:36,371 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:42:36,371 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:42:36,371 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:42:36,371 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:42:36,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:42:36,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:42:36,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:42:36,373 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:42:36,373 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:42:36,374 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:42:36,374 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:42:36,374 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:42:36,374 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:42:36,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:42:36,375 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 07:42:36,382 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:42:36,383 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:42:36,383 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:42:36,383 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:42:36,383 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:42:36,383 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:42:36,383 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:42:36,384 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:42:36,384 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:42:36,385 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:42:36,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:42:36,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:42:36,386 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:42:36,386 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:42:36,386 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 07:42:36,386 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:42:36,386 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 07:42:36,386 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 07:42:36,386 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_b1c701d5-5025-4670-a041-a473ec04b087/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 -> 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 [2018-12-03 07:42:36,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:42:36,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:42:36,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:42:36,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:42:36,418 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:42:36,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-12-03 07:42:36,461 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/a97982e44/a2e448c8bacb4293b78a77469c192f63/FLAG00faf23ac [2018-12-03 07:42:36,848 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:42:36,848 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-12-03 07:42:36,852 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/a97982e44/a2e448c8bacb4293b78a77469c192f63/FLAG00faf23ac [2018-12-03 07:42:36,860 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/data/a97982e44/a2e448c8bacb4293b78a77469c192f63 [2018-12-03 07:42:36,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:42:36,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:42:36,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:42:36,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:42:36,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:42:36,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:42:36" (1/1) ... [2018-12-03 07:42:36,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:36, skipping insertion in model container [2018-12-03 07:42:36,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:42:36" (1/1) ... [2018-12-03 07:42:36,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:42:36,882 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:42:36,978 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:42:36,981 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:42:36,999 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:42:37,014 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:42:37,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37 WrapperNode [2018-12-03 07:42:37,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:42:37,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:42:37,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:42:37,015 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:42:37,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:42:37,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:42:37,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:42:37,031 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:42:37,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... [2018-12-03 07:42:37,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:42:37,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:42:37,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:42:37,085 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:42:37,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 [2018-12-03 07:42:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-03 07:42:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-03 07:42:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:42:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:42:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 07:42:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 07:42:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-03 07:42:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-03 07:42:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:42:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:42:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-03 07:42:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:42:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:42:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-03 07:42:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 07:42:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 07:42:37,198 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 07:42:37,340 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 07:42:37,502 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:42:37,502 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-03 07:42:37,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:42:37 BoogieIcfgContainer [2018-12-03 07:42:37,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:42:37,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:42:37,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:42:37,504 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:42:37,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:42:36" (1/3) ... [2018-12-03 07:42:37,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a295ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:42:37, skipping insertion in model container [2018-12-03 07:42:37,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:42:37" (2/3) ... [2018-12-03 07:42:37,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a295ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:42:37, skipping insertion in model container [2018-12-03 07:42:37,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:42:37" (3/3) ... [2018-12-03 07:42:37,506 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b_true-unreach-call.c [2018-12-03 07:42:37,512 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:42:37,517 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:42:37,528 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:42:37,545 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 07:42:37,545 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:42:37,545 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:42:37,545 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:42:37,546 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:42:37,546 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:42:37,546 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:42:37,546 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:42:37,546 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:42:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-03 07:42:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 07:42:37,559 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:42:37,559 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] [2018-12-03 07:42:37,561 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:42:37,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:42:37,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1515461369, now seen corresponding path program 1 times [2018-12-03 07:42:37,566 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:42:37,567 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 [2018-12-03 07:42:37,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:42:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:42:37,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:42:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:42:37,637 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:42:37,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:42:37,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:42:37,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 07:42:37,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 07:42:37,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 07:42:37,656 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-12-03 07:42:37,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:42:37,669 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2018-12-03 07:42:37,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 07:42:37,669 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-03 07:42:37,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:42:37,675 INFO L225 Difference]: With dead ends: 74 [2018-12-03 07:42:37,675 INFO L226 Difference]: Without dead ends: 37 [2018-12-03 07:42:37,677 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 [2018-12-03 07:42:37,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-03 07:42:37,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-03 07:42:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-03 07:42:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-12-03 07:42:37,699 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2018-12-03 07:42:37,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:42:37,700 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-12-03 07:42:37,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 07:42:37,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-12-03 07:42:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 07:42:37,700 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:42:37,700 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] [2018-12-03 07:42:37,701 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:42:37,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:42:37,701 INFO L82 PathProgramCache]: Analyzing trace with hash -521696202, now seen corresponding path program 1 times [2018-12-03 07:42:37,701 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:42:37,701 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 [2018-12-03 07:42:37,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:42:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:42:37,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:42:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:42:38,243 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:42:38,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:42:38,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-03 07:42:38,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 07:42:38,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 07:42:38,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:42:38,251 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 11 states. [2018-12-03 07:42:39,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:42:39,657 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-12-03 07:42:39,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 07:42:39,658 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-12-03 07:42:39,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:42:39,660 INFO L225 Difference]: With dead ends: 46 [2018-12-03 07:42:39,660 INFO L226 Difference]: Without dead ends: 39 [2018-12-03 07:42:39,661 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 [2018-12-03 07:42:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-03 07:42:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-12-03 07:42:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-03 07:42:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-12-03 07:42:39,668 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2018-12-03 07:42:39,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:42:39,668 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-12-03 07:42:39,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 07:42:39,669 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-12-03 07:42:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 07:42:39,669 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:42:39,670 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] [2018-12-03 07:42:39,670 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:42:39,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:42:39,670 INFO L82 PathProgramCache]: Analyzing trace with hash -815099209, now seen corresponding path program 1 times [2018-12-03 07:42:39,671 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:42:39,671 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 [2018-12-03 07:42:39,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:42:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:42:39,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:42:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:42:39,774 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:42:39,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:42:39,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:42:39,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:42:39,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:42:39,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:42:39,783 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-12-03 07:42:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:42:40,383 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-12-03 07:42:40,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 07:42:40,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-03 07:42:40,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:42:40,385 INFO L225 Difference]: With dead ends: 59 [2018-12-03 07:42:40,385 INFO L226 Difference]: Without dead ends: 42 [2018-12-03 07:42:40,386 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 [2018-12-03 07:42:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-03 07:42:40,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-12-03 07:42:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-03 07:42:40,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-12-03 07:42:40,390 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2018-12-03 07:42:40,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:42:40,390 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-12-03 07:42:40,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:42:40,391 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-12-03 07:42:40,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 07:42:40,391 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:42:40,391 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] [2018-12-03 07:42:40,392 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:42:40,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:42:40,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1280692241, now seen corresponding path program 1 times [2018-12-03 07:42:40,392 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:42:40,392 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/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 [2018-12-03 07:42:40,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:42:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:42:40,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:42:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:42:40,510 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:42:40,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:42:40,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:42:40,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:42:40,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:42:40,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:42:40,520 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 7 states. [2018-12-03 07:42:41,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:42:41,108 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-12-03 07:42:41,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 07:42:41,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-03 07:42:41,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:42:41,110 INFO L225 Difference]: With dead ends: 42 [2018-12-03 07:42:41,110 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:42:41,110 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 [2018-12-03 07:42:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:42:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:42:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:42:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:42:41,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-03 07:42:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:42:41,111 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:42:41,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:42:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:42:41,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:42:41,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:42:41,167 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-12-03 07:42:41,167 INFO L444 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-03 07:42:41,167 INFO L448 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2018-12-03 07:42:41,168 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-12-03 07:42:41,168 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-12-03 07:42:41,168 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-12-03 07:42:41,168 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:42:41,168 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:42:41,168 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:42:41,168 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-12-03 07:42:41,168 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-12-03 07:42:41,168 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-03 07:42:41,169 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L448 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L448 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L451 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-12-03 07:42:41,170 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:42:41,170 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 07:42:41,171 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:42:41,171 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:42:41,171 INFO L448 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-12-03 07:42:41,171 INFO L444 ceAbstractionStarter]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= main_~x~0 .cse0))) [2018-12-03 07:42:41,171 INFO L448 ceAbstractionStarter]: For program point L79-1(lines 79 82) no Hoare annotation was computed. [2018-12-03 07:42:41,171 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-12-03 07:42:41,171 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-12-03 07:42:41,171 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-12-03 07:42:41,172 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-03 07:42:41,172 INFO L448 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-12-03 07:42:41,172 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-12-03 07:42:41,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:42:41 BoogieIcfgContainer [2018-12-03 07:42:41,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:42:41,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:42:41,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:42:41,181 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:42:41,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:42:37" (3/4) ... [2018-12-03 07:42:41,183 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:42:41,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-03 07:42:41,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:42:41,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-12-03 07:42:41,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:42:41,191 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-03 07:42:41,191 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-03 07:42:41,191 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 07:42:41,209 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-03 07:42:41,209 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-03 07:42:41,225 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b1c701d5-5025-4670-a041-a473ec04b087/bin-2019/utaipan/witness.graphml [2018-12-03 07:42:41,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:42:41,226 INFO L168 Benchmark]: Toolchain (without parser) took 4363.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 943.4 MB in the beginning and 922.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 154.2 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:41,227 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-03 07:42:41,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.79 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:41,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.06 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:41,228 INFO L168 Benchmark]: Boogie Preprocessor took 54.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -194.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:41,228 INFO L168 Benchmark]: RCFGBuilder took 416.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:41,228 INFO L168 Benchmark]: TraceAbstraction took 3677.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.6 MB in the end (delta: 172.2 MB). Peak memory consumption was 172.2 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:41,228 INFO L168 Benchmark]: Witness Printer took 45.03 ms. Allocated memory is still 1.2 GB. Free memory was 929.6 MB in the beginning and 922.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:42:41,230 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 150.79 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 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 16.06 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -194.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 416.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3677.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.6 MB in the end (delta: 172.2 MB). Peak memory consumption was 172.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.03 ms. Allocated memory is still 1.2 GB. Free memory was 929.6 MB in the beginning and 922.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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, 3.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 121 SDtfs, 163 SDslu, 396 SDs, 0 SdLazy, 264 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s 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, 49 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, 11478 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...