./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 ................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 ................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:14:01,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:14:01,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:14:01,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:14:01,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:14:01,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:14:01,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:14:01,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:14:01,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:14:01,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:14:01,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:14:01,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:14:01,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:14:01,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:14:01,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:14:01,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:14:01,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:14:01,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:14:01,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:14:01,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:14:01,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:14:01,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:14:01,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:14:01,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:14:01,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:14:01,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:14:01,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:14:01,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:14:01,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:14:01,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:14:01,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:14:01,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:14:01,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:14:01,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:14:01,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:14:01,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:14:01,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:14:01,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:14:01,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:14:01,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:14:01,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:14:01,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:14:01,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:14:01,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:14:01,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:14:01,931 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:14:01,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:14:01,932 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:14:01,932 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:14:01,932 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:14:01,933 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:14:01,933 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:14:01,933 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:14:01,933 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:14:01,934 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:14:01,934 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:14:01,934 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:14:01,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:14:01,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:14:01,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:14:01,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:14:01,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:14:01,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:14:01,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:14:01,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:14:01,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:14:01,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:14:01,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:14:01,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:14:01,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:14:01,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:14:01,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:14:01,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:14:01,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:14:01,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:14:01,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:14:01,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:14:01,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:14:01,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:14:01,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:14:01,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:14:01,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:14:01,947 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2020-11-30 03:14:02,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:14:02,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:14:02,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:14:02,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:14:02,319 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:14:02,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-30 03:14:02,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/69e69ff78/888c6431cfa844d1925b7fd56b7be6be/FLAG76adccc4d [2020-11-30 03:14:02,910 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:14:02,911 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-30 03:14:02,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/69e69ff78/888c6431cfa844d1925b7fd56b7be6be/FLAG76adccc4d [2020-11-30 03:14:03,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/69e69ff78/888c6431cfa844d1925b7fd56b7be6be [2020-11-30 03:14:03,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:14:03,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:14:03,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:14:03,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:14:03,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:14:03,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d29158c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03, skipping insertion in model container [2020-11-30 03:14:03,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:14:03,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:14:03,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:14:03,546 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:14:03,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:14:03,616 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:14:03,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03 WrapperNode [2020-11-30 03:14:03,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:14:03,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:14:03,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:14:03,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:14:03,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:14:03,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:14:03,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:14:03,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:14:03,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... [2020-11-30 03:14:03,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:14:03,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:14:03,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:14:03,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:14:03,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/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 [2020-11-30 03:14:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:14:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:14:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 03:14:03,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 03:14:03,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 03:14:03,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:14:03,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:14:03,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:14:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:14:04,374 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:14:04,375 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 03:14:04,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:14:04 BoogieIcfgContainer [2020-11-30 03:14:04,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:14:04,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:14:04,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:14:04,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:14:04,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:14:03" (1/3) ... [2020-11-30 03:14:04,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f44d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:14:04, skipping insertion in model container [2020-11-30 03:14:04,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:03" (2/3) ... [2020-11-30 03:14:04,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f44d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:14:04, skipping insertion in model container [2020-11-30 03:14:04,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:14:04" (3/3) ... [2020-11-30 03:14:04,389 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-11-30 03:14:04,408 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:14:04,413 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:14:04,426 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:14:04,462 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:14:04,463 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:14:04,463 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:14:04,463 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:14:04,463 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:14:04,464 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:14:04,464 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:14:04,464 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:14:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-30 03:14:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 03:14:04,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:14:04,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 03:14:04,486 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:14:04,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:14:04,493 INFO L82 PathProgramCache]: Analyzing trace with hash -2112279804, now seen corresponding path program 1 times [2020-11-30 03:14:04,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:14:04,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051142849] [2020-11-30 03:14:04,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:14:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:14:04,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:14:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:14:04,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:14:04,742 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:14:04,743 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:14:04,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:14:04,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:14:04 BoogieIcfgContainer [2020-11-30 03:14:04,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:14:04,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:14:04,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:14:04,778 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:14:04,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:14:04" (3/4) ... [2020-11-30 03:14:04,783 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:14:04,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:14:04,786 INFO L168 Benchmark]: Toolchain (without parser) took 1513.42 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 68.9 MB in the beginning and 84.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:04,788 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory was 57.0 MB in the beginning and 56.9 MB in the end (delta: 52.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:14:04,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.18 ms. Allocated memory is still 98.6 MB. Free memory was 68.7 MB in the beginning and 74.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:04,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.05 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 72.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:14:04,791 INFO L168 Benchmark]: Boogie Preprocessor took 64.30 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:14:04,791 INFO L168 Benchmark]: RCFGBuilder took 629.70 ms. Allocated memory is still 98.6 MB. Free memory was 71.5 MB in the beginning and 51.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:04,793 INFO L168 Benchmark]: TraceAbstraction took 395.74 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 50.9 MB in the beginning and 85.3 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:14:04,793 INFO L168 Benchmark]: Witness Printer took 6.41 ms. Allocated memory is still 119.5 MB. Free memory was 85.3 MB in the beginning and 84.7 MB in the end (delta: 579.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:14:04,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory was 57.0 MB in the beginning and 56.9 MB in the end (delta: 52.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.18 ms. Allocated memory is still 98.6 MB. Free memory was 68.7 MB in the beginning and 74.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.05 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 72.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.30 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 629.70 ms. Allocated memory is still 98.6 MB. Free memory was 71.5 MB in the beginning and 51.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 395.74 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 50.9 MB in the beginning and 85.3 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.41 ms. Allocated memory is still 119.5 MB. Free memory was 85.3 MB in the beginning and 84.7 MB in the end (delta: 579.1 kB). There was no memory consumed. Max. memory is 16.1 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 21, overapproximation of bitwiseAnd at line 13. Possible FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L10] double dmax; [L11] float f; [L13] EXPR \read(d) [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L5] COND TRUE !(cond) [L3] __assert_fail("0", "cast_float_ptr.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.2.0-a4ecdab [2020-11-30 03:14:07,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:14:07,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:14:07,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:14:07,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:14:07,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:14:07,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:14:07,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:14:07,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:14:07,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:14:07,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:14:07,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:14:07,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:14:07,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:14:07,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:14:07,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:14:07,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:14:07,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:14:07,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:14:07,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:14:07,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:14:07,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:14:07,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:14:07,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:14:07,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:14:07,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:14:07,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:14:07,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:14:07,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:14:07,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:14:07,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:14:07,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:14:07,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:14:07,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:14:07,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:14:07,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:14:07,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:14:07,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:14:07,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:14:07,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:14:07,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:14:07,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:14:07,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:14:07,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:14:07,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:14:07,807 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:14:07,807 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:14:07,807 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:14:07,807 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:14:07,808 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:14:07,808 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:14:07,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:14:07,811 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:14:07,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:14:07,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:14:07,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:14:07,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:14:07,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:14:07,812 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:14:07,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:14:07,813 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:14:07,813 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:14:07,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:14:07,813 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:14:07,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:14:07,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:14:07,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:14:07,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:14:07,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:14:07,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:14:07,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:14:07,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:14:07,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:14:07,815 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:14:07,816 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:14:07,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:14:07,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:14:07,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:14:07,826 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2020-11-30 03:14:08,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:14:08,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:14:08,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:14:08,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:14:08,214 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:14:08,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-30 03:14:08,292 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/4f3816431/aff5e9ce1b8043b3959a19728bc9cd2a/FLAGa22ec3c98 [2020-11-30 03:14:08,818 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:14:08,819 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-30 03:14:08,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/4f3816431/aff5e9ce1b8043b3959a19728bc9cd2a/FLAGa22ec3c98 [2020-11-30 03:14:09,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/data/4f3816431/aff5e9ce1b8043b3959a19728bc9cd2a [2020-11-30 03:14:09,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:14:09,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:14:09,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:14:09,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:14:09,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:14:09,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2768ab87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09, skipping insertion in model container [2020-11-30 03:14:09,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:14:09,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:14:09,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:14:09,432 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:14:09,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:14:09,525 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:14:09,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09 WrapperNode [2020-11-30 03:14:09,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:14:09,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:14:09,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:14:09,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:14:09,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:14:09,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:14:09,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:14:09,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:14:09,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... [2020-11-30 03:14:09,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:14:09,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:14:09,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:14:09,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:14:09,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/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 [2020-11-30 03:14:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 03:14:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 03:14:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:14:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:14:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 03:14:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 03:14:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:14:09,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:14:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 03:14:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 03:14:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:14:10,573 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:14:10,573 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 03:14:10,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:14:10 BoogieIcfgContainer [2020-11-30 03:14:10,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:14:10,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:14:10,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:14:10,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:14:10,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:14:09" (1/3) ... [2020-11-30 03:14:10,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d291602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:14:10, skipping insertion in model container [2020-11-30 03:14:10,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:14:09" (2/3) ... [2020-11-30 03:14:10,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d291602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:14:10, skipping insertion in model container [2020-11-30 03:14:10,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:14:10" (3/3) ... [2020-11-30 03:14:10,585 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-11-30 03:14:10,594 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:14:10,600 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:14:10,613 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:14:10,643 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:14:10,643 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:14:10,643 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:14:10,643 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:14:10,643 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:14:10,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:14:10,644 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:14:10,644 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:14:10,679 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-30 03:14:10,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 03:14:10,684 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:14:10,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:14:10,686 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:14:10,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:14:10,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2020-11-30 03:14:10,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:14:10,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610726074] [2020-11-30 03:14:10,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/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 [2020-11-30 03:14:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:14:10,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 03:14:10,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:14:11,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 03:14:11,093 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 17 [2020-11-30 03:14:11,094 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 03:14:11,140 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 03:14:11,146 INFO L545 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. [2020-11-30 03:14:11,147 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:110, output treesize:110 [2020-11-30 03:14:11,682 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-30 03:14:11,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:14:11,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:14:12,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610726074] [2020-11-30 03:14:12,238 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: incompatible size [2020-11-30 03:14:12,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1033878580] [2020-11-30 03:14:12,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:14:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:14:12,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 03:14:12,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:14:12,900 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@305686f4 [2020-11-30 03:14:12,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013330219] [2020-11-30 03:14:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e0e9882-0c0b-44cf-92ad-d05b4afa9bac/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:14:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:14:13,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-30 03:14:13,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:14:13,011 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@305686f4 [2020-11-30 03:14:13,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:14:13,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-30 03:14:13,012 ERROR L205 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2020-11-30 03:14:13,012 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:14:13,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk,2 mathsat -unsat_core_generation=3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:14:13,637 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-30 03:14:13,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:14:13 BoogieIcfgContainer [2020-11-30 03:14:13,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:14:13,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:14:13,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:14:13,639 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:14:13,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:14:10" (3/4) ... [2020-11-30 03:14:13,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:14:13,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:14:13,646 INFO L168 Benchmark]: Toolchain (without parser) took 4470.59 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 48.4 MB in the beginning and 57.8 MB in the end (delta: -9.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:13,647 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:14:13,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.65 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 37.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:13,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.75 ms. Allocated memory is still 65.0 MB. Free memory was 37.6 MB in the beginning and 49.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:13,651 INFO L168 Benchmark]: Boogie Preprocessor took 70.69 ms. Allocated memory is still 65.0 MB. Free memory was 49.3 MB in the beginning and 48.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:13,652 INFO L168 Benchmark]: RCFGBuilder took 879.20 ms. Allocated memory is still 65.0 MB. Free memory was 48.0 MB in the beginning and 31.3 MB in the end (delta: 16.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:13,653 INFO L168 Benchmark]: TraceAbstraction took 3059.98 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 31.0 MB in the beginning and 58.7 MB in the end (delta: -27.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:14:13,654 INFO L168 Benchmark]: Witness Printer took 5.56 ms. Allocated memory is still 81.8 MB. Free memory was 58.4 MB in the beginning and 57.8 MB in the end (delta: 568.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:14:13,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.65 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 37.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.75 ms. Allocated memory is still 65.0 MB. Free memory was 37.6 MB in the beginning and 49.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.69 ms. Allocated memory is still 65.0 MB. Free memory was 49.3 MB in the beginning and 48.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 879.20 ms. Allocated memory is still 65.0 MB. Free memory was 48.0 MB in the beginning and 31.3 MB in the end (delta: 16.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3059.98 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 31.0 MB in the beginning and 58.7 MB in the end (delta: -27.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.56 ms. Allocated memory is still 81.8 MB. Free memory was 58.4 MB in the beginning and 57.8 MB in the end (delta: 568.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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: unable to decide satisfiability of path constraint. Possible FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L10] double dmax; [L11] float f; [L13] EXPR \read(d) [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L5] COND TRUE !(cond) [L3] __assert_fail("0", "cast_float_ptr.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...