./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_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/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_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/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 [2020-11-28 07:39:48,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:48,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:48,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:48,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:48,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:48,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:48,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:48,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:48,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:48,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:48,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:48,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:48,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:48,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:48,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:48,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:48,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:48,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:48,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:48,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:48,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:48,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:48,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:48,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:48,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:48,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:48,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:48,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:48,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:48,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:48,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:48,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:48,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:48,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:48,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:48,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:48,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:48,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:48,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:48,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:48,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:39:48,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:48,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:48,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:48,839 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:48,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:48,839 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:48,840 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:39:48,840 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:48,840 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:48,840 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:39:48,841 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:39:48,841 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:48,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:39:48,842 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:39:48,842 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:39:48,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:48,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:48,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:39:48,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:48,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:48,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:48,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:48,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:48,845 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:48,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:48,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:48,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:48,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:48,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:48,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:48,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:48,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:48,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:48,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:48,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:48,849 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:39:48,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:39:48,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:48,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:48,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:48,850 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_f310641f-7851-45f9-b48f-50eaa4383a11/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2020-11-28 07:39:49,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:49,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:49,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:49,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:49,165 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:49,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-28 07:39:49,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/25c598ba6/2cb017421b1241a898d214c720e7e560/FLAG248cfc6df [2020-11-28 07:39:49,789 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:49,789 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-28 07:39:49,795 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/25c598ba6/2cb017421b1241a898d214c720e7e560/FLAG248cfc6df [2020-11-28 07:39:50,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/25c598ba6/2cb017421b1241a898d214c720e7e560 [2020-11-28 07:39:50,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:50,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:50,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:50,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:50,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:50,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62800914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50, skipping insertion in model container [2020-11-28 07:39:50,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:50,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:50,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:50,448 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:50,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:50,484 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:50,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50 WrapperNode [2020-11-28 07:39:50,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:50,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:50,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:50,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:50,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:50,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:50,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:50,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:50,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... [2020-11-28 07:39:50,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:50,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:50,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:50,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:50,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/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 [2020-11-28 07:39:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:39:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:39:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:39:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:39:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:50,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:39:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:39:51,235 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:51,235 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 07:39:51,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:51 BoogieIcfgContainer [2020-11-28 07:39:51,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:51,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:51,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:51,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:51,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:50" (1/3) ... [2020-11-28 07:39:51,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad005f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:51, skipping insertion in model container [2020-11-28 07:39:51,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:50" (2/3) ... [2020-11-28 07:39:51,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad005f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:51, skipping insertion in model container [2020-11-28 07:39:51,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:51" (3/3) ... [2020-11-28 07:39:51,249 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-11-28 07:39:51,263 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:51,269 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:39:51,283 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:39:51,327 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:51,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:51,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:51,328 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:51,328 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:51,328 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:51,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:51,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-28 07:39:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:39:51,353 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:51,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:39:51,355 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:51,362 INFO L82 PathProgramCache]: Analyzing trace with hash -2112279804, now seen corresponding path program 1 times [2020-11-28 07:39:51,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:51,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422219664] [2020-11-28 07:39:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:51,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:51,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:51,591 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:39:51,592 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:39:51,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:39:51,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:51 BoogieIcfgContainer [2020-11-28 07:39:51,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:51,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:51,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:51,620 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:51,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:51" (3/4) ... [2020-11-28 07:39:51,624 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:39:51,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:51,627 INFO L168 Benchmark]: Toolchain (without parser) took 1464.51 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.5 MB in the beginning and 76.7 MB in the end (delta: -21.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:51,627 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory was 45.1 MB in the beginning and 45.1 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:51,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.06 ms. Allocated memory is still 88.1 MB. Free memory was 55.2 MB in the beginning and 64.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:51,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.06 ms. Allocated memory is still 88.1 MB. Free memory was 64.7 MB in the beginning and 63.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:51,630 INFO L168 Benchmark]: Boogie Preprocessor took 26.33 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 61.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:51,631 INFO L168 Benchmark]: RCFGBuilder took 684.86 ms. Allocated memory is still 88.1 MB. Free memory was 61.9 MB in the beginning and 41.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:51,632 INFO L168 Benchmark]: TraceAbstraction took 379.56 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 41.1 MB in the beginning and 77.2 MB in the end (delta: -36.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:51,633 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 76.7 MB in the end (delta: 486.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:51,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory was 45.1 MB in the beginning and 45.1 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.06 ms. Allocated memory is still 88.1 MB. Free memory was 55.2 MB in the beginning and 64.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.06 ms. Allocated memory is still 88.1 MB. Free memory was 64.7 MB in the beginning and 63.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.33 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 61.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 684.86 ms. Allocated memory is still 88.1 MB. Free memory was 61.9 MB in the beginning and 41.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 379.56 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 41.1 MB in the beginning and 77.2 MB in the end (delta: -36.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 76.7 MB in the end (delta: 486.7 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 [2020-11-28 07:39:54,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:54,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:54,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:54,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:54,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:54,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:54,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:54,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:54,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:54,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:54,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:54,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:54,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:54,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:54,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:54,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:54,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:54,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:54,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:54,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:54,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:54,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:54,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:54,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:54,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:54,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:54,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:54,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:54,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:54,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:54,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:54,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:54,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:54,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:54,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:54,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:54,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:54,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:54,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:54,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:54,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:39:54,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:54,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:54,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:54,234 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:54,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:54,235 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:54,236 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:54,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:54,236 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:54,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:54,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:54,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:54,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:54,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:54,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:54,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:54,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:54,240 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:39:54,240 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:39:54,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:54,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:54,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:54,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:54,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:54,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:39:54,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:54,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:54,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:54,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:54,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:54,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:54,245 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:39:54,245 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:39:54,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:54,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:54,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:54,246 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_f310641f-7851-45f9-b48f-50eaa4383a11/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2020-11-28 07:39:54,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:54,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:54,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:54,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:54,685 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:54,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-28 07:39:54,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/2f60223f2/ca7aa8a0d78b4f87a24dd0348e70ac8d/FLAG1f9f95e1f [2020-11-28 07:39:55,301 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:55,301 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-11-28 07:39:55,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/2f60223f2/ca7aa8a0d78b4f87a24dd0348e70ac8d/FLAG1f9f95e1f [2020-11-28 07:39:55,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/bin/utaipan/data/2f60223f2/ca7aa8a0d78b4f87a24dd0348e70ac8d [2020-11-28 07:39:55,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:55,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:55,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:55,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:55,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:55,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b60d237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55, skipping insertion in model container [2020-11-28 07:39:55,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:55,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:55,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:55,891 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:55,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:55,959 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:55,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55 WrapperNode [2020-11-28 07:39:55,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:55,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:55,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:55,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:55,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:56,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:56,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:56,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:56,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:56,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:56,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:56,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:56,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:56,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/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 [2020-11-28 07:39:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 07:39:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 07:39:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:39:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 07:39:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:39:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 07:39:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:39:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:39:56,815 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:56,815 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 07:39:56,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:56 BoogieIcfgContainer [2020-11-28 07:39:56,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:56,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:56,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:56,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:56,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:55" (1/3) ... [2020-11-28 07:39:56,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148bce87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:56, skipping insertion in model container [2020-11-28 07:39:56,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (2/3) ... [2020-11-28 07:39:56,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148bce87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:56, skipping insertion in model container [2020-11-28 07:39:56,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:56" (3/3) ... [2020-11-28 07:39:56,845 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-11-28 07:39:56,857 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:56,861 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:39:56,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:39:56,898 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:56,898 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:56,898 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:56,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:56,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:56,898 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:56,899 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:56,899 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-28 07:39:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:39:56,916 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:56,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:56,917 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:56,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:56,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2020-11-28 07:39:56,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:56,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109330312] [2020-11-28 07:39:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/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 [2020-11-28 07:39:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:57,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 07:39:57,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:57,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:39:57,246 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 [2020-11-28 07:39:57,246 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:39:57,293 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:39:57,299 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. [2020-11-28 07:39:57,300 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:110, output treesize:110 [2020-11-28 07:39:57,849 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-28 07:39:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:57,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:58,433 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-28 07:39:58,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109330312] [2020-11-28 07:39:58,454 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: incompatible size [2020-11-28 07:39:58,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [780923642] [2020-11-28 07:39:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/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 [2020-11-28 07:39:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:59,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 07:39:59,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:59,032 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@30a3b6e4 [2020-11-28 07:39:59,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778422533] [2020-11-28 07:39:59,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f310641f-7851-45f9-b48f-50eaa4383a11/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 [2020-11-28 07:39:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:59,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-28 07:39:59,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:59,132 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@30a3b6e4 [2020-11-28 07:39:59,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:59,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-28 07:39:59,133 ERROR L205 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2020-11-28 07:39:59,133 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:39:59,743 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 [2020-11-28 07:39:59,756 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-28 07:39:59,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:59 BoogieIcfgContainer [2020-11-28 07:39:59,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:59,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:59,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:59,758 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:59,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:56" (3/4) ... [2020-11-28 07:39:59,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:39:59,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:59,763 INFO L168 Benchmark]: Toolchain (without parser) took 4089.67 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 43.1 MB in the beginning and 32.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:59,772 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 44.6 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:59,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.07 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 45.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:59,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.11 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 44.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:59,774 INFO L168 Benchmark]: Boogie Preprocessor took 33.66 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 42.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:59,775 INFO L168 Benchmark]: RCFGBuilder took 746.42 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 26.0 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:59,775 INFO L168 Benchmark]: TraceAbstraction took 2919.57 ms. Allocated memory is still 86.0 MB. Free memory was 68.3 MB in the beginning and 33.1 MB in the end (delta: 35.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:59,776 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 86.0 MB. Free memory is still 33.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:59,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 44.6 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.07 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 45.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.11 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 44.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.66 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 42.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 746.42 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 26.0 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2919.57 ms. Allocated memory is still 86.0 MB. Free memory was 68.3 MB in the beginning and 33.1 MB in the end (delta: 35.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.09 ms. Allocated memory is still 86.0 MB. Free memory is still 33.1 MB. 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: 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: 2.8s, 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...