./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ................................................................................................................................................................................................................................................................................................................ 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_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ........................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:41:59,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:41:59,820 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:41:59,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:41:59,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:41:59,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:41:59,831 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:41:59,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:41:59,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:41:59,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:41:59,835 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:41:59,836 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:41:59,836 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:41:59,837 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:41:59,838 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:41:59,839 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:41:59,839 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:41:59,841 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:41:59,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:41:59,843 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:41:59,844 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:41:59,845 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:41:59,847 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:41:59,847 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:41:59,847 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:41:59,848 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:41:59,849 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:41:59,850 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:41:59,850 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:41:59,851 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:41:59,851 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:41:59,852 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:41:59,852 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:41:59,852 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:41:59,853 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:41:59,853 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:41:59,853 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 09:41:59,861 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:41:59,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:41:59,862 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:41:59,862 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 09:41:59,863 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:41:59,863 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:41:59,863 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:41:59,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:41:59,863 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:41:59,863 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:41:59,863 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:41:59,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:41:59,864 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:41:59,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:41:59,864 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:41:59,864 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:41:59,864 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:41:59,864 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:41:59,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:41:59,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:41:59,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:41:59,865 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:41:59,865 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:41:59,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:41:59,866 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:41:59,866 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:41:59,866 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:41:59,866 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:41:59,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:41:59,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:41:59,866 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_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer 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 -> Automizer 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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-18 09:41:59,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:41:59,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:41:59,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:41:59,907 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:41:59,908 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:41:59,908 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 09:41:59,948 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/cd8e85090/ce5f6df1d1da4841ba1caa69c0839fd5/FLAG7869001d7 [2018-11-18 09:42:00,305 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:42:00,306 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 09:42:00,311 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/cd8e85090/ce5f6df1d1da4841ba1caa69c0839fd5/FLAG7869001d7 [2018-11-18 09:42:00,725 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/cd8e85090/ce5f6df1d1da4841ba1caa69c0839fd5 [2018-11-18 09:42:00,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:42:00,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:42:00,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:42:00,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:42:00,734 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:42:00,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:00,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b28b44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00, skipping insertion in model container [2018-11-18 09:42:00,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:00,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:42:00,764 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:42:00,895 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:42:00,898 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:42:00,914 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:42:00,930 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:42:00,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00 WrapperNode [2018-11-18 09:42:00,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:42:00,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:42:00,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:42:00,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:42:00,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:00,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:00,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:00,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:00,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:01,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:01,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... [2018-11-18 09:42:01,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:42:01,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:42:01,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:42:01,005 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:42:01,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:42:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:42:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:42:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 09:42:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 09:42:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:42:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:42:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 09:42:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:42:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 09:42:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:42:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 09:42:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 09:42:01,248 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:42:01,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:01 BoogieIcfgContainer [2018-11-18 09:42:01,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:42:01,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:42:01,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:42:01,252 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:42:01,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:42:00" (1/3) ... [2018-11-18 09:42:01,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff9092b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:42:01, skipping insertion in model container [2018-11-18 09:42:01,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:00" (2/3) ... [2018-11-18 09:42:01,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff9092b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:42:01, skipping insertion in model container [2018-11-18 09:42:01,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:01" (3/3) ... [2018-11-18 09:42:01,256 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-18 09:42:01,265 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:42:01,270 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:42:01,282 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:42:01,305 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:42:01,305 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:42:01,305 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:42:01,305 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:42:01,305 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:42:01,306 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:42:01,306 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:42:01,306 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:42:01,306 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:42:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-18 09:42:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 09:42:01,322 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:42:01,322 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:42:01,324 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:42:01,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:42:01,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1673394824, now seen corresponding path program 1 times [2018-11-18 09:42:01,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:42:01,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:42:01,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:42:01,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:42:01,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:42:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:42:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:42:01,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:42:01,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:42:01,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 09:42:01,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:42:01,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:42:01,437 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-18 09:42:01,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:42:01,456 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-11-18 09:42:01,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:42:01,457 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 09:42:01,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:42:01,464 INFO L225 Difference]: With dead ends: 70 [2018-11-18 09:42:01,465 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 09:42:01,467 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:42:01,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 09:42:01,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 09:42:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 09:42:01,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-11-18 09:42:01,494 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-11-18 09:42:01,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:42:01,494 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-11-18 09:42:01,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 09:42:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-11-18 09:42:01,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 09:42:01,495 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:42:01,495 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:42:01,495 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:42:01,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:42:01,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1465845470, now seen corresponding path program 1 times [2018-11-18 09:42:01,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:42:01,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:42:01,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:42:01,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:42:01,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:42:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:42:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:42:01,577 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:42:01,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:42:01 BoogieIcfgContainer [2018-11-18 09:42:01,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:42:01,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:42:01,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:42:01,597 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:42:01,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:01" (3/4) ... [2018-11-18 09:42:01,600 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:42:01,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:42:01,600 INFO L168 Benchmark]: Toolchain (without parser) took 871.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 960.8 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:01,601 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:42:01,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.17 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 944.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:01,602 INFO L168 Benchmark]: Boogie Preprocessor took 73.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:01,603 INFO L168 Benchmark]: RCFGBuilder took 243.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:01,603 INFO L168 Benchmark]: TraceAbstraction took 347.18 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:01,604 INFO L168 Benchmark]: Witness Printer took 3.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:42:01,607 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 199.17 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 944.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.18 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.27 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: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L68] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (i0) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450949] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450949] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450949] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450949] [L68] EXPR ceil_float(x) VAL [ceil_float(x)=6442450950, huge_ceil=1000000000000000000000000000000, x=6442450949] [L68] float res = ceil_float(x); [L71] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000] [L57] RET return x != x; VAL [\old(x)=6442450950, \result=0, huge_ceil=1000000000000000000000000000000, x=6442450950] [L71] EXPR isnan_float(res) VAL [huge_ceil=1000000000000000000000000000000, isnan_float(res)=0, res=6442450950, x=6442450949] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450950, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 09:42:03,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:42:03,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:42:03,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:42:03,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:42:03,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:42:03,174 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:42:03,175 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:42:03,176 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:42:03,177 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:42:03,177 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:42:03,178 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:42:03,178 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:42:03,179 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:42:03,180 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:42:03,181 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:42:03,181 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:42:03,183 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:42:03,184 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:42:03,185 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:42:03,186 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:42:03,187 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:42:03,189 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:42:03,189 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:42:03,189 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:42:03,190 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:42:03,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:42:03,191 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:42:03,192 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:42:03,193 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:42:03,193 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:42:03,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:42:03,194 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:42:03,194 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:42:03,195 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:42:03,195 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:42:03,195 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 09:42:03,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:42:03,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:42:03,208 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:42:03,208 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 09:42:03,209 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:42:03,209 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:42:03,209 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:42:03,209 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:42:03,209 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:42:03,209 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:42:03,209 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:42:03,210 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:42:03,211 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:42:03,211 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:42:03,211 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:42:03,211 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:42:03,211 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:42:03,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:42:03,212 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:42:03,212 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:42:03,212 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:42:03,212 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 09:42:03,212 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:42:03,212 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 09:42:03,213 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 09:42:03,213 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_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer 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 -> Automizer 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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-18 09:42:03,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:42:03,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:42:03,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:42:03,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:42:03,259 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:42:03,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 09:42:03,302 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/a4e3bccea/69dfdd6014bf41adae6523a2f0a0fd1e/FLAGab685b6ce [2018-11-18 09:42:03,647 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:42:03,648 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 09:42:03,653 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/a4e3bccea/69dfdd6014bf41adae6523a2f0a0fd1e/FLAGab685b6ce [2018-11-18 09:42:04,072 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/data/a4e3bccea/69dfdd6014bf41adae6523a2f0a0fd1e [2018-11-18 09:42:04,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:42:04,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:42:04,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:42:04,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:42:04,080 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:42:04,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502bafa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04, skipping insertion in model container [2018-11-18 09:42:04,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:42:04,110 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:42:04,255 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:42:04,259 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:42:04,279 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:42:04,295 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:42:04,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04 WrapperNode [2018-11-18 09:42:04,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:42:04,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:42:04,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:42:04,297 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:42:04,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... [2018-11-18 09:42:04,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:42:04,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:42:04,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:42:04,332 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:42:04,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 09:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 09:42:04,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 09:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 09:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 09:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 09:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 09:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 09:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 09:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 09:42:04,680 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 09:42:04,964 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:42:04,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:04 BoogieIcfgContainer [2018-11-18 09:42:04,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:42:04,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:42:04,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:42:04,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:42:04,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:42:04" (1/3) ... [2018-11-18 09:42:04,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48708020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:42:04, skipping insertion in model container [2018-11-18 09:42:04,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:04" (2/3) ... [2018-11-18 09:42:04,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48708020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:42:04, skipping insertion in model container [2018-11-18 09:42:04,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:04" (3/3) ... [2018-11-18 09:42:04,970 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-18 09:42:04,977 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:42:04,983 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:42:04,993 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:42:05,017 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:42:05,017 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:42:05,017 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:42:05,017 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:42:05,017 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:42:05,018 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:42:05,018 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:42:05,018 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:42:05,018 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:42:05,029 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-18 09:42:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 09:42:05,033 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:42:05,034 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:42:05,035 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:42:05,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:42:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash 160012109, now seen corresponding path program 1 times [2018-11-18 09:42:05,042 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:42:05,042 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 09:42:05,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:42:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:42:05,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:42:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:42:05,118 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:42:05,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:42:05,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:42:05,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 09:42:05,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:42:05,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:42:05,143 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-18 09:42:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:42:05,163 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-11-18 09:42:05,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:42:05,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 09:42:05,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:42:05,172 INFO L225 Difference]: With dead ends: 68 [2018-11-18 09:42:05,173 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 09:42:05,176 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:42:05,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 09:42:05,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 09:42:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 09:42:05,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-11-18 09:42:05,206 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-11-18 09:42:05,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:42:05,206 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-11-18 09:42:05,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 09:42:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-11-18 09:42:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 09:42:05,207 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:42:05,207 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:42:05,208 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:42:05,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:42:05,208 INFO L82 PathProgramCache]: Analyzing trace with hash 2084968106, now seen corresponding path program 1 times [2018-11-18 09:42:05,209 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:42:05,209 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 09:42:05,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:42:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:42:05,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:42:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:42:05,787 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:42:05,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:42:05,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 09:42:05,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:42:05,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:42:05,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:42:05,797 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-11-18 09:42:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:42:07,741 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-18 09:42:07,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:42:07,742 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 09:42:07,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:42:07,745 INFO L225 Difference]: With dead ends: 43 [2018-11-18 09:42:07,745 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 09:42:07,746 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:42:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 09:42:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-18 09:42:07,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 09:42:07,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-11-18 09:42:07,755 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-11-18 09:42:07,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:42:07,755 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-18 09:42:07,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:42:07,755 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-11-18 09:42:07,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 09:42:07,756 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:42:07,756 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:42:07,757 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:42:07,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:42:07,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1888454601, now seen corresponding path program 1 times [2018-11-18 09:42:07,758 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:42:07,758 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 09:42:07,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:42:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:42:07,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:42:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:42:07,898 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:42:07,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:42:07,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 09:42:07,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:42:07,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:42:07,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:42:07,912 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-11-18 09:42:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:42:08,452 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-11-18 09:42:08,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:42:08,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 09:42:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:42:08,454 INFO L225 Difference]: With dead ends: 41 [2018-11-18 09:42:08,454 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 09:42:08,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:42:08,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 09:42:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 09:42:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 09:42:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-18 09:42:08,459 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-11-18 09:42:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:42:08,459 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-18 09:42:08,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:42:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-18 09:42:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 09:42:08,461 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:42:08,461 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:42:08,461 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:42:08,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:42:08,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1533020569, now seen corresponding path program 1 times [2018-11-18 09:42:08,462 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:42:08,462 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 09:42:08,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:42:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:42:08,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:42:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:42:08,618 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:42:08,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:42:08,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 09:42:08,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:42:08,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:42:08,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:42:08,628 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-11-18 09:42:09,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:42:09,241 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-18 09:42:09,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:42:09,242 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 09:42:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:42:09,243 INFO L225 Difference]: With dead ends: 39 [2018-11-18 09:42:09,243 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:42:09,243 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-18 09:42:09,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:42:09,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:42:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:42:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:42:09,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 09:42:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:42:09,244 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:42:09,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:42:09,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:42:09,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:42:09,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:42:09,330 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 57) no Hoare annotation was computed. [2018-11-18 09:42:09,330 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 57) the Hoare annotation is: true [2018-11-18 09:42:09,330 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 57) no Hoare annotation was computed. [2018-11-18 09:42:09,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:42:09,331 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:42:09,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:42:09,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:42:09,331 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 09:42:09,331 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:42:09,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:42:09,331 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 59 77) the Hoare annotation is: true [2018-11-18 09:42:09,331 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 59 77) no Hoare annotation was computed. [2018-11-18 09:42:09,331 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2018-11-18 09:42:09,332 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 59 77) no Hoare annotation was computed. [2018-11-18 09:42:09,332 INFO L425 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-11-18 09:42:09,332 INFO L421 ceAbstractionStarter]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-18 09:42:09,332 INFO L425 ceAbstractionStarter]: For program point L71-1(lines 71 74) no Hoare annotation was computed. [2018-11-18 09:42:09,332 INFO L421 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-18 09:42:09,332 INFO L425 ceAbstractionStarter]: For program point L68-1(line 68) no Hoare annotation was computed. [2018-11-18 09:42:09,332 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-18 09:42:09,332 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-18 09:42:09,332 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-18 09:42:09,333 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-18 09:42:09,333 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-18 09:42:09,333 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-18 09:42:09,333 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-18 09:42:09,333 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-18 09:42:09,333 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-18 09:42:09,333 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 09:42:09,333 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 09:42:09,334 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-18 09:42:09,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:42:09 BoogieIcfgContainer [2018-11-18 09:42:09,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:42:09,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:42:09,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:42:09,344 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:42:09,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:04" (3/4) ... [2018-11-18 09:42:09,347 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:42:09,353 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 09:42:09,353 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:42:09,354 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:42:09,354 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-18 09:42:09,358 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 09:42:09,358 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 09:42:09,358 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 09:42:09,377 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 09:42:09,395 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_21061f54-fe9d-48fd-9c54-b9ccbc605dea/bin-2019/uautomizer/witness.graphml [2018-11-18 09:42:09,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:42:09,396 INFO L168 Benchmark]: Toolchain (without parser) took 5320.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 949.7 MB in the beginning and 964.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 138.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:09,397 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:42:09,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:09,398 INFO L168 Benchmark]: Boogie Preprocessor took 34.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:42:09,398 INFO L168 Benchmark]: RCFGBuilder took 633.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:09,398 INFO L168 Benchmark]: TraceAbstraction took 4378.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 152.5 MB). Peak memory consumption was 152.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:09,399 INFO L168 Benchmark]: Witness Printer took 51.19 ms. Allocated memory is still 1.2 GB. Free memory was 971.4 MB in the beginning and 964.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:09,400 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 219.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 633.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4378.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 152.5 MB). Peak memory consumption was 152.5 MB. Max. memory is 11.5 GB. * Witness Printer took 51.19 ms. Allocated memory is still 1.2 GB. Free memory was 971.4 MB in the beginning and 964.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 13 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...