./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/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 4f322714ac20f006604c99f1f234e99ccbfae195 ................................................................................................................................................................................................................................................................................... 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_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/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 4f322714ac20f006604c99f1f234e99ccbfae195 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 14:08:09,824 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 14:08:09,825 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 14:08:09,831 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 14:08:09,831 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 14:08:09,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 14:08:09,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 14:08:09,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 14:08:09,833 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 14:08:09,834 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 14:08:09,834 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 14:08:09,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 14:08:09,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 14:08:09,835 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 14:08:09,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 14:08:09,836 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 14:08:09,836 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 14:08:09,837 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 14:08:09,838 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 14:08:09,839 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 14:08:09,839 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 14:08:09,840 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 14:08:09,841 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 14:08:09,841 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 14:08:09,841 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 14:08:09,842 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 14:08:09,842 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 14:08:09,843 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 14:08:09,843 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 14:08:09,844 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 14:08:09,844 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 14:08:09,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 14:08:09,844 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 14:08:09,844 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 14:08:09,845 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 14:08:09,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 14:08:09,845 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 14:08:09,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 14:08:09,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 14:08:09,853 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 14:08:09,853 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 14:08:09,853 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 14:08:09,853 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 14:08:09,853 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 14:08:09,853 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 14:08:09,853 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 14:08:09,853 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 14:08:09,854 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 14:08:09,854 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 14:08:09,854 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 14:08:09,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 14:08:09,854 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 14:08:09,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 14:08:09,854 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 14:08:09,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 14:08:09,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 14:08:09,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 14:08:09,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 14:08:09,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 14:08:09,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 14:08:09,856 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 14:08:09,856 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 14:08:09,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 14:08:09,856 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 14:08:09,856 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_b079d1a3-9749-4223-bdd0-9abe54e52ce4/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 -> 4f322714ac20f006604c99f1f234e99ccbfae195 [2018-12-09 14:08:09,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 14:08:09,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 14:08:09,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 14:08:09,883 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 14:08:09,883 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 14:08:09,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-12-09 14:08:09,918 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/7ca300d3e/05d5488fd057473291beec6909e157d3/FLAG33738db77 [2018-12-09 14:08:10,249 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 14:08:10,249 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-12-09 14:08:10,253 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/7ca300d3e/05d5488fd057473291beec6909e157d3/FLAG33738db77 [2018-12-09 14:08:10,652 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/7ca300d3e/05d5488fd057473291beec6909e157d3 [2018-12-09 14:08:10,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 14:08:10,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 14:08:10,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 14:08:10,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 14:08:10,658 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 14:08:10,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355d8d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10, skipping insertion in model container [2018-12-09 14:08:10,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 14:08:10,674 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 14:08:10,762 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:08:10,769 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 14:08:10,779 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:08:10,788 INFO L195 MainTranslator]: Completed translation [2018-12-09 14:08:10,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10 WrapperNode [2018-12-09 14:08:10,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 14:08:10,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 14:08:10,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 14:08:10,789 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 14:08:10,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 14:08:10,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 14:08:10,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 14:08:10,804 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 14:08:10,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... [2018-12-09 14:08:10,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 14:08:10,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 14:08:10,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 14:08:10,849 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 14:08:10,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 14:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 14:08:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 14:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 14:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 14:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-12-09 14:08:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-12-09 14:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 14:08:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 14:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 14:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 14:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 14:08:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 14:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 14:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 14:08:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 14:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 14:08:10,996 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 14:08:10,997 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 14:08:10,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:08:10 BoogieIcfgContainer [2018-12-09 14:08:10,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 14:08:10,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 14:08:10,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 14:08:10,999 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 14:08:10,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:08:10" (1/3) ... [2018-12-09 14:08:11,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4c5cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:08:11, skipping insertion in model container [2018-12-09 14:08:11,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:10" (2/3) ... [2018-12-09 14:08:11,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4c5cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:08:11, skipping insertion in model container [2018-12-09 14:08:11,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:08:10" (3/3) ... [2018-12-09 14:08:11,001 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_float_ptr_false-unreach-call_true-termination.c [2018-12-09 14:08:11,007 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 14:08:11,011 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 14:08:11,020 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 14:08:11,037 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 14:08:11,037 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 14:08:11,037 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 14:08:11,038 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 14:08:11,038 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 14:08:11,038 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 14:08:11,038 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 14:08:11,038 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 14:08:11,048 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-09 14:08:11,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 14:08:11,051 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:08:11,051 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:08:11,052 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:08:11,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:08:11,055 INFO L82 PathProgramCache]: Analyzing trace with hash -241609895, now seen corresponding path program 1 times [2018-12-09 14:08:11,057 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:08:11,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:08:11,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:08:11,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:08:11,086 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:08:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:08:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:08:11,153 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 14:08:11,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:08:11 BoogieIcfgContainer [2018-12-09 14:08:11,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 14:08:11,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 14:08:11,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 14:08:11,171 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 14:08:11,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:08:10" (3/4) ... [2018-12-09 14:08:11,173 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 14:08:11,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 14:08:11,173 INFO L168 Benchmark]: Toolchain (without parser) took 518.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:08:11,174 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:08:11,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.38 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:11,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.66 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:08:11,175 INFO L168 Benchmark]: Boogie Preprocessor took 44.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:11,176 INFO L168 Benchmark]: RCFGBuilder took 148.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:11,176 INFO L168 Benchmark]: TraceAbstraction took 172.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:11,176 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:11,178 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.38 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.66 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 148.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 172.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 23, overapproximation of bitwiseAnd at line 11. Possible FailurePath: [L32] double a; [L33] float r; [L35] a = __VERIFIER_nondet_double() [L36] CALL cast(a) VAL [\old(d)=3758096387] [L8] double dmax; [L9] float f; [L11] EXPR \read(d) VAL [\old(d)=3758096387, \read(d)=3758096391, d={3758096386:0}, dmax={3758096390:0}, f={3758096393:0}] [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] ((unsigned*)&dmax)[0] = 0x47efffff [L14] ((unsigned*)&dmax)[1] = 0xe0000000 [L16] EXPR \read(d) [L16] EXPR \read(dmax) VAL [\old(d)=3758096387, \read(d)=3758096387, \read(dmax)=3758096388, d={3758096386:0}, dmax={3758096390:0}, f={3758096393:0}] [L16] COND FALSE !(d > dmax) [L19] EXPR \read(d) [L19] EXPR \read(dmax) VAL [\old(d)=3758096387, \read(d)=3758096387, \read(dmax)=3758096388, d={3758096386:0}, dmax={3758096390:0}, f={3758096393:0}] [L19] COND FALSE !(-d > dmax) [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=3758096387, \read(d)=3758096387, \read(d)=3758096387, d={3758096386:0}, dmax={3758096390:0}, f={3758096393:0}] [L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L3] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 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=28occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 14:08:12,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 14:08:12,478 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 14:08:12,486 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 14:08:12,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 14:08:12,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 14:08:12,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 14:08:12,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 14:08:12,490 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 14:08:12,490 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 14:08:12,491 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 14:08:12,491 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 14:08:12,492 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 14:08:12,492 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 14:08:12,493 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 14:08:12,494 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 14:08:12,494 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 14:08:12,496 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 14:08:12,497 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 14:08:12,498 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 14:08:12,499 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 14:08:12,500 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 14:08:12,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 14:08:12,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 14:08:12,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 14:08:12,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 14:08:12,503 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 14:08:12,504 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 14:08:12,504 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 14:08:12,505 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 14:08:12,505 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 14:08:12,506 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 14:08:12,506 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 14:08:12,506 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 14:08:12,506 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 14:08:12,507 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 14:08:12,507 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 14:08:12,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 14:08:12,518 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 14:08:12,518 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 14:08:12,518 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 14:08:12,518 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 14:08:12,519 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 14:08:12,519 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 14:08:12,519 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 14:08:12,519 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 14:08:12,519 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 14:08:12,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 14:08:12,520 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 14:08:12,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 14:08:12,521 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 14:08:12,521 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 14:08:12,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 14:08:12,522 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 14:08:12,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 14:08:12,522 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 14:08:12,522 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 14:08:12,522 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_b079d1a3-9749-4223-bdd0-9abe54e52ce4/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 -> 4f322714ac20f006604c99f1f234e99ccbfae195 [2018-12-09 14:08:12,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 14:08:12,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 14:08:12,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 14:08:12,554 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 14:08:12,554 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 14:08:12,555 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-12-09 14:08:12,590 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/6de9ecc95/812dd47b819a45db8e6e6c8a2ee28dab/FLAG02f31f04e [2018-12-09 14:08:12,984 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 14:08:12,984 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-12-09 14:08:12,988 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/6de9ecc95/812dd47b819a45db8e6e6c8a2ee28dab/FLAG02f31f04e [2018-12-09 14:08:12,996 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/data/6de9ecc95/812dd47b819a45db8e6e6c8a2ee28dab [2018-12-09 14:08:12,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 14:08:12,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 14:08:13,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 14:08:13,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 14:08:13,003 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 14:08:13,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:08:12" (1/1) ... [2018-12-09 14:08:13,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49eb7855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13, skipping insertion in model container [2018-12-09 14:08:13,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:08:12" (1/1) ... [2018-12-09 14:08:13,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 14:08:13,024 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 14:08:13,112 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:08:13,120 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 14:08:13,131 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:08:13,144 INFO L195 MainTranslator]: Completed translation [2018-12-09 14:08:13,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13 WrapperNode [2018-12-09 14:08:13,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 14:08:13,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 14:08:13,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 14:08:13,145 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 14:08:13,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 14:08:13,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 14:08:13,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 14:08:13,161 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 14:08:13,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... [2018-12-09 14:08:13,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 14:08:13,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 14:08:13,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 14:08:13,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 14:08:13,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 14:08:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 14:08:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 14:08:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 14:08:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 14:08:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-12-09 14:08:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 14:08:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 14:08:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 14:08:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 14:08:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 14:08:13,334 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 14:08:13,407 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 14:08:13,422 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 14:08:13,422 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 14:08:13,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:08:13 BoogieIcfgContainer [2018-12-09 14:08:13,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 14:08:13,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 14:08:13,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 14:08:13,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 14:08:13,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:08:12" (1/3) ... [2018-12-09 14:08:13,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be7b7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:08:13, skipping insertion in model container [2018-12-09 14:08:13,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:08:13" (2/3) ... [2018-12-09 14:08:13,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be7b7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:08:13, skipping insertion in model container [2018-12-09 14:08:13,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:08:13" (3/3) ... [2018-12-09 14:08:13,429 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_float_ptr_false-unreach-call_true-termination.c [2018-12-09 14:08:13,435 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 14:08:13,439 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 14:08:13,448 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 14:08:13,464 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 14:08:13,464 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 14:08:13,464 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 14:08:13,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 14:08:13,464 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 14:08:13,465 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 14:08:13,465 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 14:08:13,465 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 14:08:13,465 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 14:08:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-09 14:08:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 14:08:13,476 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:08:13,477 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:08:13,478 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:08:13,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:08:13,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1713573888, now seen corresponding path program 1 times [2018-12-09 14:08:13,484 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 14:08:13,484 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 14:08:13,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:08:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:08:13,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:08:13,592 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-12-09 14:08:13,598 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-09 14:08:13,607 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 14:08:13,609 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 14:08:13,610 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-12-09 14:08:13,611 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 14:08:13,634 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 14:08:13,647 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 14:08:13,670 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 14:08:13,670 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:107, output treesize:107 [2018-12-09 14:08:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:08:13,844 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 14:08:13,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:08:13,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 14:08:13,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 14:08:13,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 14:08:13,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 14:08:13,866 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states. [2018-12-09 14:08:14,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:08:14,207 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2018-12-09 14:08:14,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 14:08:14,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-12-09 14:08:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:08:14,217 INFO L225 Difference]: With dead ends: 44 [2018-12-09 14:08:14,217 INFO L226 Difference]: Without dead ends: 17 [2018-12-09 14:08:14,219 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 14:08:14,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-09 14:08:14,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-09 14:08:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-09 14:08:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-12-09 14:08:14,240 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2018-12-09 14:08:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:08:14,241 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-12-09 14:08:14,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 14:08:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-12-09 14:08:14,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 14:08:14,241 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:08:14,241 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:08:14,242 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:08:14,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:08:14,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1711726846, now seen corresponding path program 1 times [2018-12-09 14:08:14,242 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 14:08:14,242 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 14:08:14,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:08:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:08:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:08:14,348 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 14:08:14,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:08:14 BoogieIcfgContainer [2018-12-09 14:08:14,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 14:08:14,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 14:08:14,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 14:08:14,369 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 14:08:14,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:08:13" (3/4) ... [2018-12-09 14:08:14,371 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 14:08:14,396 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b079d1a3-9749-4223-bdd0-9abe54e52ce4/bin-2019/utaipan/witness.graphml [2018-12-09 14:08:14,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 14:08:14,397 INFO L168 Benchmark]: Toolchain (without parser) took 1398.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -112.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:14,398 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:08:14,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.71 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:14,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.69 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:14,399 INFO L168 Benchmark]: Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:08:14,399 INFO L168 Benchmark]: RCFGBuilder took 243.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -207.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:14,399 INFO L168 Benchmark]: TraceAbstraction took 946.35 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: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. [2018-12-09 14:08:14,400 INFO L168 Benchmark]: Witness Printer took 27.40 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. [2018-12-09 14:08:14,401 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.71 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.69 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -207.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 946.35 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: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. * Witness Printer took 27.40 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: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32] double a; [L33] float r; [L35] a = __VERIFIER_nondet_double() [L36] CALL cast(a) VAL [\old(d)=NaN] [L8] double dmax; [L9] float f; [L11] EXPR \read(d) VAL [\old(d)=NaN, \read(d)=0, d={1:0}, dmax={2:0}, f={3:0}] [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] ((unsigned*)&dmax)[0] = 0x47efffff [L14] ((unsigned*)&dmax)[1] = 0xe0000000 [L16] EXPR \read(d) [L16] EXPR \read(dmax) VAL [\old(d)=NaN, \read(d)=NaN, \read(dmax)=-26815623046150350000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, d={1:0}, dmax={2:0}, f={3:0}] [L16] COND FALSE !(d > dmax) [L19] EXPR \read(d) [L19] EXPR \read(dmax) VAL [\old(d)=NaN, \read(d)=NaN, \read(dmax)=-26815623046150350000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, d={1:0}, dmax={2:0}, f={3:0}] [L19] COND FALSE !(-d > dmax) [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=NaN, \read(d)=NaN, d={1:0}, d >= -3.41e38 && d <= 3.41e38=0, dmax={2:0}, f={3:0}] [L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L3] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 3 SDslu, 36 SDs, 0 SdLazy, 26 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 3 QuantifiedInterpolants, 5130 SizeOfPredicates, 3 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...