./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.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_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/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 20183bacfea343fcbafe493366fbda56f082cdb8 ........................................................................................................................................................................................................................................................ 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_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/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 20183bacfea343fcbafe493366fbda56f082cdb8 .................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:29:14,879 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:29:14,880 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:29:14,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:29:14,886 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:29:14,886 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:29:14,887 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:29:14,888 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:29:14,889 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:29:14,889 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:29:14,890 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:29:14,890 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:29:14,890 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:29:14,891 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:29:14,891 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:29:14,892 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:29:14,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:29:14,893 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:29:14,894 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:29:14,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:29:14,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:29:14,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:29:14,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:29:14,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:29:14,898 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:29:14,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:29:14,898 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:29:14,899 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:29:14,899 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:29:14,900 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:29:14,900 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:29:14,900 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:29:14,900 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:29:14,901 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:29:14,901 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:29:14,901 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:29:14,902 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 01:29:14,909 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:29:14,909 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:29:14,909 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:29:14,909 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:29:14,910 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 01:29:14,910 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:29:14,911 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:29:14,911 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:29:14,912 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:29:14,912 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:29:14,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:29:14,913 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 01:29:14,913 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_4c6f4d9d-5516-426e-8924-de450952dc46/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 -> 20183bacfea343fcbafe493366fbda56f082cdb8 [2018-12-09 01:29:14,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:29:14,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:29:14,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:29:14,939 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:29:14,939 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:29:14,940 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-12-09 01:29:14,976 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/fe2608611/e82b93d8af914b02a1c7588f0c0912b6/FLAG923ac6423 [2018-12-09 01:29:15,348 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:29:15,348 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-12-09 01:29:15,352 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/fe2608611/e82b93d8af914b02a1c7588f0c0912b6/FLAG923ac6423 [2018-12-09 01:29:15,718 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/fe2608611/e82b93d8af914b02a1c7588f0c0912b6 [2018-12-09 01:29:15,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:29:15,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:29:15,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:29:15,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:29:15,725 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:29:15,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211fd2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15, skipping insertion in model container [2018-12-09 01:29:15,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:29:15,750 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:29:15,846 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:29:15,848 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:29:15,857 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:29:15,866 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:29:15,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15 WrapperNode [2018-12-09 01:29:15,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:29:15,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:29:15,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:29:15,868 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:29:15,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:29:15,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:29:15,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:29:15,882 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:29:15,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... [2018-12-09 01:29:15,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:29:15,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:29:15,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:29:15,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:29:15,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:29:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:29:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:29:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:29:15,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:29:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:29:15,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:29:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 01:29:15,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 01:29:16,046 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:29:16,046 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 01:29:16,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:29:16 BoogieIcfgContainer [2018-12-09 01:29:16,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:29:16,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:29:16,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:29:16,050 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:29:16,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:29:15" (1/3) ... [2018-12-09 01:29:16,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c19ca7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:29:16, skipping insertion in model container [2018-12-09 01:29:16,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:15" (2/3) ... [2018-12-09 01:29:16,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c19ca7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:29:16, skipping insertion in model container [2018-12-09 01:29:16,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:29:16" (3/3) ... [2018-12-09 01:29:16,053 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1_true-unreach-call_true-termination.c [2018-12-09 01:29:16,061 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:29:16,067 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:29:16,077 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:29:16,098 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:29:16,098 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:29:16,099 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:29:16,099 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:29:16,099 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:29:16,099 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:29:16,099 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:29:16,099 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:29:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-09 01:29:16,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 01:29:16,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:29:16,115 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:29:16,116 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:29:16,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:29:16,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1031028888, now seen corresponding path program 1 times [2018-12-09 01:29:16,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:29:16,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:29:16,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:29:16,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:29:16,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:29:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:29:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:29:16,191 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:29:16,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:29:16 BoogieIcfgContainer [2018-12-09 01:29:16,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:29:16,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:29:16,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:29:16,206 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:29:16,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:29:16" (3/4) ... [2018-12-09 01:29:16,208 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 01:29:16,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:29:16,209 INFO L168 Benchmark]: Toolchain (without parser) took 488.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -103.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:29:16,210 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:29:16,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:29:16,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.71 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:29:16,211 INFO L168 Benchmark]: Boogie Preprocessor took 13.00 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:29:16,211 INFO L168 Benchmark]: RCFGBuilder took 152.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -135.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:29:16,212 INFO L168 Benchmark]: TraceAbstraction took 157.60 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:29:16,212 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:29:16,214 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 13.71 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.00 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 152.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -135.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 157.60 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 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: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 36, overapproximation of to_real at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 32. Possible FailurePath: [L17] double E0, E1, S; [L18] int i; [L20] E1 = 0 [L21] S = 0 [L23] i = 0 VAL [i=0] [L23] COND TRUE i <= 1000000 [L25] E0 = __VERIFIER_nondet_double() [L28] COND FALSE !(__VERIFIER_nondet_int()) [L32] S = 0.999 * S + E0 - E1 VAL [E0=2, i=0] [L34] E1 = E0 VAL [E0=2, E1=2, i=0] [L36] CALL __VERIFIER_assert(S >= -10000. && S <= 10000.) VAL [\old(cond)=0] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L12] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:29:17,560 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:29:17,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:29:17,569 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:29:17,570 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:29:17,570 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:29:17,571 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:29:17,572 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:29:17,573 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:29:17,574 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:29:17,574 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:29:17,575 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:29:17,575 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:29:17,576 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:29:17,577 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:29:17,577 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:29:17,578 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:29:17,579 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:29:17,580 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:29:17,581 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:29:17,582 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:29:17,583 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:29:17,584 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:29:17,584 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:29:17,585 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:29:17,585 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:29:17,586 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:29:17,586 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:29:17,587 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:29:17,588 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:29:17,588 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:29:17,588 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:29:17,588 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:29:17,589 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:29:17,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:29:17,589 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:29:17,590 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 01:29:17,600 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:29:17,600 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:29:17,601 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:29:17,601 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:29:17,601 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:29:17,601 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:29:17,602 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:29:17,602 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:29:17,602 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:29:17,602 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:29:17,602 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:29:17,602 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 01:29:17,603 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:29:17,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:29:17,604 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:29:17,604 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:29:17,605 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 01:29:17,605 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:29:17,605 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 01:29:17,605 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 01:29:17,605 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_4c6f4d9d-5516-426e-8924-de450952dc46/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 -> 20183bacfea343fcbafe493366fbda56f082cdb8 [2018-12-09 01:29:17,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:29:17,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:29:17,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:29:17,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:29:17,642 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:29:17,642 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-12-09 01:29:17,678 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/a5d738c77/772ae99bf2b54ece98751f58cb923720/FLAGcd129948f [2018-12-09 01:29:18,082 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:29:18,082 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-12-09 01:29:18,086 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/a5d738c77/772ae99bf2b54ece98751f58cb923720/FLAGcd129948f [2018-12-09 01:29:18,094 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/data/a5d738c77/772ae99bf2b54ece98751f58cb923720 [2018-12-09 01:29:18,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:29:18,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:29:18,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:29:18,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:29:18,101 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:29:18,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49eb7855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18, skipping insertion in model container [2018-12-09 01:29:18,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:29:18,122 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:29:18,218 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:29:18,222 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:29:18,232 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:29:18,241 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:29:18,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18 WrapperNode [2018-12-09 01:29:18,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:29:18,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:29:18,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:29:18,242 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:29:18,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:29:18,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:29:18,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:29:18,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:29:18,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... [2018-12-09 01:29:18,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:29:18,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:29:18,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:29:18,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:29:18,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:29:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:29:18,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:29:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:29:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:29:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:29:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:29:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 01:29:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 01:29:20,464 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:29:20,464 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 01:29:20,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:29:20 BoogieIcfgContainer [2018-12-09 01:29:20,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:29:20,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:29:20,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:29:20,467 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:29:20,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:29:18" (1/3) ... [2018-12-09 01:29:20,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c2f882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:29:20, skipping insertion in model container [2018-12-09 01:29:20,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:29:18" (2/3) ... [2018-12-09 01:29:20,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c2f882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:29:20, skipping insertion in model container [2018-12-09 01:29:20,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:29:20" (3/3) ... [2018-12-09 01:29:20,469 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1_true-unreach-call_true-termination.c [2018-12-09 01:29:20,475 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:29:20,480 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:29:20,489 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:29:20,505 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:29:20,505 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:29:20,505 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:29:20,505 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:29:20,505 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:29:20,505 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:29:20,506 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:29:20,506 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:29:20,506 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:29:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-09 01:29:20,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 01:29:20,518 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:29:20,519 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:29:20,520 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:29:20,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:29:20,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1031028888, now seen corresponding path program 1 times [2018-12-09 01:29:20,526 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:29:20,526 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 01:29:20,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:29:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:29:20,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:29:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:29:20,989 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:29:20,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:29:20,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:29:21,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:29:21,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:29:21,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:29:21,010 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2018-12-09 01:29:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:29:26,063 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2018-12-09 01:29:26,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:29:26,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-12-09 01:29:26,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:29:26,069 INFO L225 Difference]: With dead ends: 55 [2018-12-09 01:29:26,069 INFO L226 Difference]: Without dead ends: 28 [2018-12-09 01:29:26,071 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:29:26,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-09 01:29:26,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2018-12-09 01:29:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 01:29:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-12-09 01:29:26,094 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 12 [2018-12-09 01:29:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:29:26,094 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-12-09 01:29:26,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:29:26,094 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-09 01:29:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 01:29:26,095 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:29:26,095 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:29:26,095 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:29:26,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:29:26,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1126207937, now seen corresponding path program 1 times [2018-12-09 01:29:26,096 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:29:26,096 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 01:29:26,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:29:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:29:27,418 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:29:29,610 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse1 (fp.neg .cse0))) (and (fp.leq main_~E1~0 .cse0) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq main_~E1~0 .cse1) (fp.leq main_~E0~0 .cse0) (fp.geq v_main_~S~0_10 (fp.neg .cse2)) (fp.leq v_main_~S~0_10 .cse2) (fp.geq main_~E0~0 .cse1))))) is different from false [2018-12-09 01:29:31,635 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse1 (fp.neg .cse0))) (and (fp.leq main_~E1~0 .cse0) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq main_~E1~0 .cse1) (fp.leq main_~E0~0 .cse0) (fp.geq v_main_~S~0_10 (fp.neg .cse2)) (fp.leq v_main_~S~0_10 .cse2) (fp.geq main_~E0~0 .cse1))))) is different from true [2018-12-09 01:29:47,925 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 (fp.neg .cse0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_2 (fp.neg .cse1)) (fp.geq v_prenex_3 .cse2) (fp.leq v_prenex_3 .cse0) (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_2) v_prenex_3) v_prenex_1) .cse1)) (fp.geq v_prenex_1 .cse2) (fp.leq v_prenex_2 .cse1))))) .cse3) (and (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (let ((.cse6 (fp.neg .cse7)) (.cse5 (fp.neg .cse4))) (and (fp.leq main_~E1~0 .cse4) (fp.geq main_~E1~0 .cse5) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) .cse6)) (fp.leq main_~E0~0 .cse4) (fp.geq v_main_~S~0_10 .cse6) (fp.leq v_main_~S~0_10 .cse7) (fp.geq main_~E0~0 .cse5))))) .cse3) (and (exists ((v_prenex_6 (_ FloatingPoint 11 53)) (v_prenex_7 (_ FloatingPoint 11 53)) (v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse8 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse9 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_6) v_prenex_7) v_prenex_5)) (.cse12 (fp.neg .cse8)) (.cse11 (fp.neg .cse10))) (and (fp.leq v_prenex_5 .cse8) (fp.leq .cse9 .cse10) (fp.leq v_prenex_7 .cse8) (fp.leq v_prenex_6 .cse10) (fp.geq .cse9 .cse11) (fp.geq v_prenex_5 .cse12) (fp.geq v_prenex_7 .cse12) (fp.geq v_prenex_6 .cse11))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2018-12-09 01:30:02,205 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and (exists ((v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 (fp.neg .cse0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_2 (fp.neg .cse1)) (fp.geq v_prenex_3 .cse2) (fp.leq v_prenex_3 .cse0) (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_2) v_prenex_3) v_prenex_1) .cse1)) (fp.geq v_prenex_1 .cse2) (fp.leq v_prenex_2 .cse1))))) .cse3) (and (exists ((v_prenex_6 (_ FloatingPoint 11 53)) (v_prenex_7 (_ FloatingPoint 11 53)) (v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_6) v_prenex_7) v_prenex_5)) (.cse8 (fp.neg .cse4)) (.cse7 (fp.neg .cse6))) (and (fp.leq v_prenex_5 .cse4) (fp.leq .cse5 .cse6) (fp.leq v_prenex_7 .cse4) (fp.leq v_prenex_6 .cse6) (fp.geq .cse5 .cse7) (fp.geq v_prenex_5 .cse8) (fp.geq v_prenex_7 .cse8) (fp.geq v_prenex_6 .cse7))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (let ((.cse11 (fp.neg .cse12)) (.cse10 (fp.neg .cse9))) (and (fp.leq main_~E1~0 .cse9) (fp.geq main_~E1~0 .cse10) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) .cse11)) (fp.leq main_~E0~0 .cse9) (fp.geq v_main_~S~0_10 .cse11) (fp.leq v_main_~S~0_10 .cse12) (fp.geq main_~E0~0 .cse10)))))))) is different from false [2018-12-09 01:30:12,405 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 (fp.neg .cse0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_2 (fp.neg .cse1)) (fp.geq v_prenex_3 .cse2) (fp.leq v_prenex_3 .cse0) (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_2) v_prenex_3) v_prenex_1) .cse1)) (fp.geq v_prenex_1 .cse2) (fp.leq v_prenex_2 .cse1))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (let ((.cse5 (fp.neg .cse6)) (.cse4 (fp.neg .cse3))) (and (fp.leq main_~E1~0 .cse3) (fp.geq main_~E1~0 .cse4) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) .cse5)) (fp.leq main_~E0~0 .cse3) (fp.geq v_main_~S~0_10 .cse5) (fp.leq v_main_~S~0_10 .cse6) (fp.geq main_~E0~0 .cse4)))))) is different from false [2018-12-09 01:30:14,444 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 (fp.neg .cse0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_2 (fp.neg .cse1)) (fp.geq v_prenex_3 .cse2) (fp.leq v_prenex_3 .cse0) (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_2) v_prenex_3) v_prenex_1) .cse1)) (fp.geq v_prenex_1 .cse2) (fp.leq v_prenex_2 .cse1))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (let ((.cse5 (fp.neg .cse6)) (.cse4 (fp.neg .cse3))) (and (fp.leq main_~E1~0 .cse3) (fp.geq main_~E1~0 .cse4) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) .cse5)) (fp.leq main_~E0~0 .cse3) (fp.geq v_main_~S~0_10 .cse5) (fp.leq v_main_~S~0_10 .cse6) (fp.geq main_~E0~0 .cse4)))))) is different from true [2018-12-09 01:30:14,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2018-12-09 01:30:14,447 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:30:16,519 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) c_main_~S~0) c_main_~E0~0) c_main_~E1~0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2018-12-09 01:30:18,552 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) c_main_~S~0) c_main_~E0~0) c_main_~E1~0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2018-12-09 01:30:20,613 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_main_~E0~0_5 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (not (fp.leq v_main_~E0~0_5 .cse0)) (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) c_main_~S~0) v_main_~E0~0_5) c_main_~E1~0) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (not (fp.geq v_main_~E0~0_5 (fp.neg .cse0)))))) (forall ((v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (not (fp.geq v_prenex_9 (fp.neg .cse1))) (not (fp.leq v_prenex_9 .cse1)) (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) c_main_~S~0) v_prenex_9) c_main_~E1~0) ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)))))) is different from true [2018-12-09 01:30:22,689 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_11 (_ FloatingPoint 11 53)) (v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (or (not (fp.geq v_prenex_9 (fp.neg .cse0))) (not (fp.leq v_prenex_9 .cse0)) (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_11) v_prenex_9) c_main_~E1~0) .cse1) (not (fp.leq v_prenex_11 .cse1)) (not (fp.geq v_prenex_11 (fp.neg .cse1)))))) (forall ((v_main_~E0~0_5 (_ FloatingPoint 11 53)) (main_~S~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (let ((.cse4 (fp.neg .cse3)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (not (fp.leq v_main_~E0~0_5 .cse2)) (not (fp.leq main_~S~0 .cse3)) (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) main_~S~0) v_main_~E0~0_5) c_main_~E1~0) .cse4) (not (fp.geq main_~S~0 .cse4)) (not (fp.geq v_main_~E0~0_5 (fp.neg .cse2)))))))) is different from false [2018-12-09 01:30:24,746 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_11 (_ FloatingPoint 11 53)) (v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (or (not (fp.geq v_prenex_9 (fp.neg .cse0))) (not (fp.leq v_prenex_9 .cse0)) (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_11) v_prenex_9) c_main_~E1~0) .cse1) (not (fp.leq v_prenex_11 .cse1)) (not (fp.geq v_prenex_11 (fp.neg .cse1)))))) (forall ((v_main_~E0~0_5 (_ FloatingPoint 11 53)) (main_~S~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (let ((.cse4 (fp.neg .cse3)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (not (fp.leq v_main_~E0~0_5 .cse2)) (not (fp.leq main_~S~0 .cse3)) (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) main_~S~0) v_main_~E0~0_5) c_main_~E1~0) .cse4) (not (fp.geq main_~S~0 .cse4)) (not (fp.geq v_main_~E0~0_5 (fp.neg .cse2)))))))) is different from true [2018-12-09 01:30:24,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:30:24,763 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:30:24,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:30:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2018-12-09 01:30:37,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:30:37,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-12-09 01:30:37,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 01:30:37,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 01:30:37,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=70, Unknown=11, NotChecked=154, Total=272 [2018-12-09 01:30:37,049 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 12 states. [2018-12-09 01:30:41,192 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse1 (fp.neg .cse0))) (and (fp.leq main_~E1~0 .cse0) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq main_~E1~0 .cse1) (fp.leq main_~E0~0 .cse0) (fp.geq v_main_~S~0_10 (fp.neg .cse2)) (fp.leq v_main_~S~0_10 .cse2) (fp.geq main_~E0~0 .cse1))))) (fp.leq c_main_~E0~0 .cse3) (fp.geq c_main_~E0~0 (fp.neg .cse3)))) is different from false [2018-12-09 01:30:43,235 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.leq c_main_~E1~0 .cse0) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse2 (fp.neg .cse1))) (and (fp.leq main_~E1~0 .cse1) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq main_~E1~0 .cse2) (fp.leq main_~E0~0 .cse1) (fp.geq v_main_~S~0_10 (fp.neg .cse3)) (fp.leq v_main_~S~0_10 .cse3) (fp.geq main_~E0~0 .cse2))))) (fp.geq c_main_~E1~0 (fp.neg .cse0)))) is different from false [2018-12-09 01:30:45,341 WARN L832 $PredicateComparison]: unable to prove that (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (let ((.cse3 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and (exists ((v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 (fp.neg .cse0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_2 (fp.neg .cse1)) (fp.geq v_prenex_3 .cse2) (fp.leq v_prenex_3 .cse0) (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_2) v_prenex_3) v_prenex_1) .cse1)) (fp.geq v_prenex_1 .cse2) (fp.leq v_prenex_2 .cse1))))) .cse3) (and (exists ((v_prenex_6 (_ FloatingPoint 11 53)) (v_prenex_7 (_ FloatingPoint 11 53)) (v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_prenex_6) v_prenex_7) v_prenex_5)) (.cse8 (fp.neg .cse4)) (.cse7 (fp.neg .cse6))) (and (fp.leq v_prenex_5 .cse4) (fp.leq .cse5 .cse6) (fp.leq v_prenex_7 .cse4) (fp.leq v_prenex_6 .cse6) (fp.geq .cse5 .cse7) (fp.geq v_prenex_5 .cse8) (fp.geq v_prenex_7 .cse8) (fp.geq v_prenex_6 .cse7))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (let ((.cse11 (fp.neg .cse12)) (.cse10 (fp.neg .cse9))) (and (fp.leq main_~E1~0 .cse9) (fp.geq main_~E1~0 .cse10) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) .cse11)) (fp.leq main_~E0~0 .cse9) (fp.geq v_main_~S~0_10 .cse11) (fp.leq v_main_~S~0_10 .cse12) (fp.geq main_~E0~0 .cse10))))))))) is different from false [2018-12-09 01:30:45,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:30:45,383 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-12-09 01:30:45,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 01:30:45,384 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-12-09 01:30:45,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:30:45,384 INFO L225 Difference]: With dead ends: 32 [2018-12-09 01:30:45,384 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:30:45,385 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=48, Invalid=88, Unknown=14, NotChecked=270, Total=420 [2018-12-09 01:30:45,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:30:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:30:45,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:30:45,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:30:45,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-09 01:30:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:30:45,386 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:30:45,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 01:30:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:30:45,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:30:45,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:31:38,053 WARN L180 SmtUtils]: Spent 52.62 s on a formula simplification. DAG size of input: 103 DAG size of output: 1 [2018-12-09 01:32:45,823 WARN L180 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-12-09 01:32:45,847 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 01:32:45,847 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:32:45,847 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:32:45,847 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 01:32:45,848 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:32:45,848 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:32:45,848 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 15 39) the Hoare annotation is: true [2018-12-09 01:32:45,848 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 33) no Hoare annotation was computed. [2018-12-09 01:32:45,848 INFO L448 ceAbstractionStarter]: For program point L28-2(lines 28 33) no Hoare annotation was computed. [2018-12-09 01:32:45,848 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 39) no Hoare annotation was computed. [2018-12-09 01:32:45,848 INFO L444 ceAbstractionStarter]: At program point L23-2(lines 23 37) the Hoare annotation is: (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.leq main_~E1~0 .cse0) (fp.leq main_~S~0 .cse1) (fp.geq main_~E1~0 (fp.neg .cse0)) (fp.geq main_~S~0 (fp.neg .cse1)))) [2018-12-09 01:32:45,848 INFO L448 ceAbstractionStarter]: For program point L23-3(lines 23 37) no Hoare annotation was computed. [2018-12-09 01:32:45,849 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 39) no Hoare annotation was computed. [2018-12-09 01:32:45,849 INFO L444 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.neg .cse2))) (let ((.cse0 (fp.leq main_~E1~0 .cse2)) (.cse1 (fp.geq main_~E1~0 .cse5))) (or (and .cse0 .cse1 (fp.leq main_~E0~0 .cse2) (exists ((main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.leq main_~E0~0 .cse3) (= (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) .cse4) main_~E0~0) .cse4)) main_~S~0) (fp.geq main_~E0~0 (fp.neg .cse3))))) (fp.geq main_~E0~0 .cse5)) (and .cse0 (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (v_main_~S~0_10 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse8 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse7 (fp.neg .cse6))) (and (fp.leq main_~E1~0 .cse6) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) v_main_~S~0_10) main_~E0~0) main_~E1~0) main_~S~0) (fp.geq main_~E1~0 .cse7) (fp.leq main_~E0~0 .cse6) (fp.geq v_main_~S~0_10 (fp.neg .cse8)) (fp.leq v_main_~S~0_10 .cse8) (fp.geq main_~E0~0 .cse7))))) .cse1))))) [2018-12-09 01:32:45,849 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 23 37) no Hoare annotation was computed. [2018-12-09 01:32:45,849 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-12-09 01:32:45,849 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 12) the Hoare annotation is: true [2018-12-09 01:32:45,849 INFO L448 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-12-09 01:32:45,849 INFO L448 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-12-09 01:32:45,850 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 12) no Hoare annotation was computed. [2018-12-09 01:32:45,850 INFO L448 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-12-09 01:32:45,855 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,860 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,860 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,860 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,860 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:32:45 BoogieIcfgContainer [2018-12-09 01:32:45,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:32:45,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:32:45,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:32:45,862 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:32:45,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:29:20" (3/4) ... [2018-12-09 01:32:45,865 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:32:45,869 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:32:45,869 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:32:45,869 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 01:32:45,871 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 01:32:45,871 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 01:32:45,872 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 01:32:45,898 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4c6f4d9d-5516-426e-8924-de450952dc46/bin-2019/utaipan/witness.graphml [2018-12-09 01:32:45,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:32:45,899 INFO L168 Benchmark]: Toolchain (without parser) took 207802.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 943.3 MB in the beginning and 963.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 99.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:32:45,899 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:32:45,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.69 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 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. [2018-12-09 01:32:45,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.42 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:32:45,900 INFO L168 Benchmark]: Boogie Preprocessor took 15.43 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:32:45,900 INFO L168 Benchmark]: RCFGBuilder took 2194.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:32:45,900 INFO L168 Benchmark]: TraceAbstraction took 205396.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 970.0 MB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:32:45,900 INFO L168 Benchmark]: Witness Printer took 36.11 ms. Allocated memory is still 1.1 GB. Free memory was 970.0 MB in the beginning and 963.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:32:45,902 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.69 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 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 13.42 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.43 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2194.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 205396.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 970.0 MB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. * Witness Printer took 36.11 ms. Allocated memory is still 1.1 GB. Free memory was 970.0 MB in the beginning and 963.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 23]: Loop Invariant [2018-12-09 01:32:45,905 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,906 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,906 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,906 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,906 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,906 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,907 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 01:32:45,907 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.leq~DOUBLE(E1, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~fp.leq~DOUBLE(S, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 10000.0))) && ~fp.geq~DOUBLE(E1, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)))) && ~fp.geq~DOUBLE(S, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 10000.0))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 205.3s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 13.4s AutomataDifference, 0.0s DeadEndRemovalTime, 120.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 28 SDslu, 109 SDs, 0 SdLazy, 38 SolverSat, 16 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 29.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, 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, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 144 HoareAnnotationTreeSize, 10 FomulaSimplifications, 166 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 812 FormulaSimplificationTreeSizeReductionInter, 120.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 13.5s SatisfiabilityAnalysisTime, 57.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 7 QuantifiedInterpolants, 15470 SizeOfPredicates, 10 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...