./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ........................................................................................................................................................................................................................................................ 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_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:33:52,866 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:33:52,868 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:33:52,877 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:33:52,877 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:33:52,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:33:52,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:33:52,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:33:52,882 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:33:52,883 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:33:52,884 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:33:52,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:33:52,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:33:52,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:33:52,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:33:52,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:33:52,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:33:52,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:33:52,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:33:52,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:33:52,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:33:52,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:33:52,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:33:52,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:33:52,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:33:52,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:33:52,899 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:33:52,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:33:52,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:33:52,902 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:33:52,902 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:33:52,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:33:52,903 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:33:52,903 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:33:52,904 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:33:52,905 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:33:52,905 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 19:33:52,916 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:33:52,916 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:33:52,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:33:52,917 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:33:52,917 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:33:52,918 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:33:52,918 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 19:33:52,918 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:33:52,918 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 19:33:52,918 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 19:33:52,918 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:33:52,919 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:33:52,919 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:33:52,919 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:33:52,919 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:33:52,919 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:33:52,921 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:33:52,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:33:52,921 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:33:52,921 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:33:52,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:33:52,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:33:52,922 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:33:52,922 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:33:52,922 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:33:52,922 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:33:52,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:33:52,923 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:33:52,923 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:33:52,923 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:33:52,923 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 19:33:52,923 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:33:52,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:33:52,923 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:33:52,924 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_47966587-aa3d-4101-9c4d-348c347a56ca/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-10-26 19:33:52,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:33:52,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:33:52,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:33:52,965 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:33:52,965 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:33:52,966 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-10-26 19:33:53,009 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/c6ab1e1de/bcc754a24ba9432b88c5baebadf10222/FLAGe08401bc5 [2018-10-26 19:33:53,374 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:33:53,374 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-10-26 19:33:53,379 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/c6ab1e1de/bcc754a24ba9432b88c5baebadf10222/FLAGe08401bc5 [2018-10-26 19:33:53,391 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/c6ab1e1de/bcc754a24ba9432b88c5baebadf10222 [2018-10-26 19:33:53,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:33:53,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:33:53,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:33:53,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:33:53,401 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:33:53,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5002b830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53, skipping insertion in model container [2018-10-26 19:33:53,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:33:53,430 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:33:53,541 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:33:53,545 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:33:53,557 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:33:53,569 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:33:53,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53 WrapperNode [2018-10-26 19:33:53,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:33:53,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:33:53,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:33:53,571 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:33:53,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:33:53,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:33:53,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:33:53,590 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:33:53,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... [2018-10-26 19:33:53,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:33:53,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:33:53,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:33:53,606 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:33:53,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/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 [2018-10-26 19:33:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:33:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:33:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:33:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:33:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:33:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:33:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-10-26 19:33:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-10-26 19:33:53,938 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:33:53,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:33:53 BoogieIcfgContainer [2018-10-26 19:33:53,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:33:53,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:33:53,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:33:53,943 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:33:53,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:33:53" (1/3) ... [2018-10-26 19:33:53,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dcb65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:33:53, skipping insertion in model container [2018-10-26 19:33:53,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:53" (2/3) ... [2018-10-26 19:33:53,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dcb65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:33:53, skipping insertion in model container [2018-10-26 19:33:53,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:33:53" (3/3) ... [2018-10-26 19:33:53,946 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-10-26 19:33:53,955 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:33:53,962 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:33:53,979 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:33:54,008 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:33:54,009 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:33:54,009 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:33:54,009 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:33:54,009 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:33:54,009 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:33:54,009 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:33:54,009 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:33:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-10-26 19:33:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 19:33:54,031 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:33:54,032 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:33:54,034 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:33:54,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:33:54,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-10-26 19:33:54,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:33:54,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:33:54,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:33:54,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:33:54,093 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:33:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:33:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:33:54,153 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:33:54,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:33:54 BoogieIcfgContainer [2018-10-26 19:33:54,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:33:54,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:33:54,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:33:54,177 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:33:54,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:33:53" (3/4) ... [2018-10-26 19:33:54,187 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:33:54,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:33:54,188 INFO L168 Benchmark]: Toolchain (without parser) took 791.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:33:54,189 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:33:54,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.23 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:33:54,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.36 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:33:54,191 INFO L168 Benchmark]: Boogie Preprocessor took 16.03 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:33:54,192 INFO L168 Benchmark]: RCFGBuilder took 332.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -214.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-10-26 19:33:54,193 INFO L168 Benchmark]: TraceAbstraction took 236.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:33:54,194 INFO L168 Benchmark]: Witness Printer took 10.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:33:54,198 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.23 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 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 19.36 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.03 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -214.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 236.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 10.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] RET d = 1.0 VAL [\old(d)=0, d=1] [L18] f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 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=19occurred 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, 14 NumberOfCodeBlocks, 14 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 0.1.23-1dbac8b [2018-10-26 19:33:56,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:33:56,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:33:56,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:33:56,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:33:56,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:33:56,402 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:33:56,406 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:33:56,407 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:33:56,408 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:33:56,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:33:56,409 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:33:56,410 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:33:56,410 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:33:56,411 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:33:56,414 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:33:56,414 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:33:56,416 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:33:56,417 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:33:56,418 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:33:56,419 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:33:56,427 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:33:56,431 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:33:56,431 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:33:56,431 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:33:56,432 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:33:56,433 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:33:56,433 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:33:56,434 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:33:56,440 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:33:56,440 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:33:56,441 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:33:56,441 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:33:56,441 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:33:56,442 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:33:56,442 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:33:56,443 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 19:33:56,462 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:33:56,466 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:33:56,467 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:33:56,468 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:33:56,468 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:33:56,468 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:33:56,468 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:33:56,468 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:33:56,469 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:33:56,469 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:33:56,469 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:33:56,469 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:33:56,469 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:33:56,469 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:33:56,469 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:33:56,470 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:33:56,470 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:33:56,470 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:33:56,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:33:56,470 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:33:56,470 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:33:56,470 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:33:56,471 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:33:56,471 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:33:56,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:33:56,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:33:56,471 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:33:56,471 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:33:56,475 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 19:33:56,475 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:33:56,475 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:33:56,475 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:33:56,475 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_47966587-aa3d-4101-9c4d-348c347a56ca/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-10-26 19:33:56,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:33:56,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:33:56,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:33:56,552 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:33:56,553 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:33:56,553 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-10-26 19:33:56,603 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/72d43135c/bd5d5448dd5e4fb0aa81f1b060516e4a/FLAGcede02715 [2018-10-26 19:33:56,973 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:33:56,973 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-10-26 19:33:56,978 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/72d43135c/bd5d5448dd5e4fb0aa81f1b060516e4a/FLAGcede02715 [2018-10-26 19:33:56,988 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/data/72d43135c/bd5d5448dd5e4fb0aa81f1b060516e4a [2018-10-26 19:33:56,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:33:56,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:33:56,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:33:56,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:33:56,997 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:33:56,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:33:56" (1/1) ... [2018-10-26 19:33:56,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae54847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:56, skipping insertion in model container [2018-10-26 19:33:57,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:33:56" (1/1) ... [2018-10-26 19:33:57,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:33:57,024 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:33:57,188 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:33:57,194 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:33:57,211 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:33:57,232 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:33:57,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57 WrapperNode [2018-10-26 19:33:57,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:33:57,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:33:57,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:33:57,233 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:33:57,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:33:57,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:33:57,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:33:57,253 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:33:57,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... [2018-10-26 19:33:57,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:33:57,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:33:57,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:33:57,274 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:33:57,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/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 [2018-10-26 19:33:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:33:57,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:33:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:33:57,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:33:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:33:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:33:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-10-26 19:33:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-10-26 19:33:58,561 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:33:58,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:33:58 BoogieIcfgContainer [2018-10-26 19:33:58,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:33:58,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:33:58,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:33:58,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:33:58,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:33:56" (1/3) ... [2018-10-26 19:33:58,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70201ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:33:58, skipping insertion in model container [2018-10-26 19:33:58,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:33:57" (2/3) ... [2018-10-26 19:33:58,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70201ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:33:58, skipping insertion in model container [2018-10-26 19:33:58,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:33:58" (3/3) ... [2018-10-26 19:33:58,575 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-10-26 19:33:58,582 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:33:58,588 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:33:58,598 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:33:58,625 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:33:58,625 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:33:58,626 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:33:58,626 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:33:58,626 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:33:58,626 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:33:58,626 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:33:58,626 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:33:58,626 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:33:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-10-26 19:33:58,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 19:33:58,647 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:33:58,648 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:33:58,650 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:33:58,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:33:58,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-10-26 19:33:58,659 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:33:58,660 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/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 [2018-10-26 19:33:58,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:33:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:33:58,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:33:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:33:59,053 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:33:59,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:33:59,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 19:33:59,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 19:33:59,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 19:33:59,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:33:59,078 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-10-26 19:34:00,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:34:00,775 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-10-26 19:34:00,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 19:34:00,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-10-26 19:34:00,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:34:00,784 INFO L225 Difference]: With dead ends: 30 [2018-10-26 19:34:00,784 INFO L226 Difference]: Without dead ends: 15 [2018-10-26 19:34:00,787 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:34:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-26 19:34:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-26 19:34:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-26 19:34:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-10-26 19:34:00,822 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2018-10-26 19:34:00,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:34:00,822 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-10-26 19:34:00,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 19:34:00,823 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-10-26 19:34:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 19:34:00,823 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:34:00,823 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:34:00,824 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:34:00,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:34:00,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1845819503, now seen corresponding path program 1 times [2018-10-26 19:34:00,824 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:34:00,824 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/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 [2018-10-26 19:34:00,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:34:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:34:00,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:34:01,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:34:01,087 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:34:01,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:34:01,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 19:34:01,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 19:34:01,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 19:34:01,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:34:01,104 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2018-10-26 19:34:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:34:01,640 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-10-26 19:34:01,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 19:34:01,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-10-26 19:34:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:34:01,641 INFO L225 Difference]: With dead ends: 15 [2018-10-26 19:34:01,641 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:34:01,642 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:34:01,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:34:01,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:34:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:34:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:34:01,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-26 19:34:01,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:34:01,643 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:34:01,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 19:34:01,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:34:01,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:34:01,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:34:01,711 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:34:01,712 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:34:01,712 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:34:01,712 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:34:01,712 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 19:34:01,712 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:34:01,712 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:34:01,712 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 25) the Hoare annotation is: true [2018-10-26 19:34:01,712 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 25) no Hoare annotation was computed. [2018-10-26 19:34:01,712 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-26 19:34:01,712 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-10-26 19:34:01,713 INFO L425 ceAbstractionStarter]: For program point L24-3(lines 11 25) no Hoare annotation was computed. [2018-10-26 19:34:01,713 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-26 19:34:01,713 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2018-10-26 19:34:01,713 INFO L421 ceAbstractionStarter]: At program point L15-2(lines 15 16) the Hoare annotation is: (or (= (bvadd main_~x~0 (_ bv4294967292 32)) (_ bv0 32)) (= (bvadd main_~x~0 (_ bv4294967294 32)) (_ bv0 32))) [2018-10-26 19:34:01,713 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2018-10-26 19:34:01,713 INFO L425 ceAbstractionStarter]: For program point f1FINAL(lines 6 9) no Hoare annotation was computed. [2018-10-26 19:34:01,713 INFO L425 ceAbstractionStarter]: For program point f1EXIT(lines 6 9) no Hoare annotation was computed. [2018-10-26 19:34:01,713 INFO L428 ceAbstractionStarter]: At program point f1ENTRY(lines 6 9) the Hoare annotation is: true [2018-10-26 19:34:01,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:34:01 BoogieIcfgContainer [2018-10-26 19:34:01,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:34:01,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:34:01,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:34:01,720 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:34:01,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:33:58" (3/4) ... [2018-10-26 19:34:01,724 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:34:01,731 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:34:01,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:34:01,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2018-10-26 19:34:01,736 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-26 19:34:01,738 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 19:34:01,769 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_47966587-aa3d-4101-9c4d-348c347a56ca/bin-2019/utaipan/witness.graphml [2018-10-26 19:34:01,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:34:01,770 INFO L168 Benchmark]: Toolchain (without parser) took 4778.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:34:01,772 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:34:01,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.38 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:34:01,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.97 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:34:01,773 INFO L168 Benchmark]: Boogie Preprocessor took 20.37 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:34:01,774 INFO L168 Benchmark]: RCFGBuilder took 1288.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -211.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-10-26 19:34:01,774 INFO L168 Benchmark]: TraceAbstraction took 3152.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.7 MB). Peak memory consumption was 56.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:34:01,775 INFO L168 Benchmark]: Witness Printer took 49.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:34:01,779 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.38 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 19.97 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.37 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1288.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -211.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3152.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.7 MB). Peak memory consumption was 56.7 MB. Max. memory is 11.5 GB. * Witness Printer took 49.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...