./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI --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_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI --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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:30:42,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:30:42,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:30:42,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:30:42,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:30:42,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:30:42,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:30:42,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:30:42,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:30:42,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:30:42,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:30:42,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:30:42,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:30:42,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:30:42,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:30:42,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:30:42,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:30:42,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:30:42,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:30:42,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:30:42,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:30:42,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:30:42,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:30:42,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:30:42,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:30:42,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:30:42,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:30:42,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:30:42,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:30:42,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:30:42,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:30:42,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:30:42,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:30:42,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:30:42,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:30:42,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:30:42,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:30:42,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:30:42,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:30:42,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:30:42,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:30:42,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:30:42,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:30:42,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:30:42,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:30:42,865 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:30:42,865 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:30:42,865 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:30:42,865 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:30:42,866 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:30:42,866 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:30:42,866 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:30:42,866 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:30:42,866 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:30:42,867 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:30:42,867 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:30:42,873 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:30:42,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:30:42,876 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:30:42,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:30:42,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:30:42,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:30:42,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:30:42,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:30:42,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:30:42,878 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:30:42,878 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:30:42,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:30:42,878 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:30:42,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:30:42,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:30:42,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:30:42,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:42,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:30:42,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:30:42,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:30:42,883 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:30:42,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:30:42,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:30:42,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:30:42,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:30:42,885 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_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2021-10-11 02:30:43,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:30:43,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:30:43,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:30:43,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:30:43,225 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:30:43,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-10-11 02:30:43,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/934cdaec0/c1cb01cb60d548b7951be2b8af5c34f5/FLAGa5276f61c [2021-10-11 02:30:43,792 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:30:43,792 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-10-11 02:30:43,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/934cdaec0/c1cb01cb60d548b7951be2b8af5c34f5/FLAGa5276f61c [2021-10-11 02:30:44,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/934cdaec0/c1cb01cb60d548b7951be2b8af5c34f5 [2021-10-11 02:30:44,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:30:44,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:30:44,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:44,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:30:44,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:30:44,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2945c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44, skipping insertion in model container [2021-10-11 02:30:44,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:30:44,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:44,379 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2021-10-11 02:30:44,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:44,421 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:30:44,433 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2021-10-11 02:30:44,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:44,459 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:30:44,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44 WrapperNode [2021-10-11 02:30:44,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:44,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:44,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:30:44,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:30:44,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:44,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:30:44,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:30:44,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:30:44,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... [2021-10-11 02:30:44,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:30:44,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:30:44,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:30:44,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:30:44,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:30:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:30:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:30:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:30:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:30:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:30:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:30:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:30:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:30:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:30:45,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:30:45,034 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:30:45,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:45 BoogieIcfgContainer [2021-10-11 02:30:45,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:30:45,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:30:45,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:30:45,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:30:45,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:44" (1/3) ... [2021-10-11 02:30:45,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d6885d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:45, skipping insertion in model container [2021-10-11 02:30:45,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:44" (2/3) ... [2021-10-11 02:30:45,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d6885d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:45, skipping insertion in model container [2021-10-11 02:30:45,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:45" (3/3) ... [2021-10-11 02:30:45,058 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-10-11 02:30:45,079 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:30:45,087 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:30:45,099 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:30:45,126 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:30:45,126 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:30:45,126 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:30:45,127 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:30:45,127 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:30:45,127 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:30:45,127 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:30:45,127 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:30:45,141 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-10-11 02:30:45,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:30:45,146 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:45,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:30:45,147 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:45,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:45,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2125426307, now seen corresponding path program 1 times [2021-10-11 02:30:45,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:45,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432365923] [2021-10-11 02:30:45,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:45,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:45,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:45,545 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:30:45,546 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:30:45,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:30:45,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:30:45 BoogieIcfgContainer [2021-10-11 02:30:45,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:30:45,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:30:45,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:30:45,598 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:30:45,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:45" (3/4) ... [2021-10-11 02:30:45,603 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:30:45,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:30:45,608 INFO L168 Benchmark]: Toolchain (without parser) took 1429.17 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.9 MB in the beginning and 81.4 MB in the end (delta: -22.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:45,610 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:45,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.88 ms. Allocated memory is still 92.3 MB. Free memory was 58.7 MB in the beginning and 69.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:45,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.75 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 67.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:45,615 INFO L168 Benchmark]: Boogie Preprocessor took 61.91 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 66.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:45,616 INFO L168 Benchmark]: RCFGBuilder took 457.64 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 46.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:45,617 INFO L168 Benchmark]: TraceAbstraction took 557.97 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 45.7 MB in the beginning and 81.9 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:45,617 INFO L168 Benchmark]: Witness Printer took 7.30 ms. Allocated memory is still 111.1 MB. Free memory is still 81.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:45,629 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.88 ms. Allocated memory is still 92.3 MB. Free memory was 58.7 MB in the beginning and 69.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.75 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 67.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.91 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 66.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 457.64 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 46.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 557.97 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 45.7 MB in the beginning and 81.9 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.30 ms. Allocated memory is still 111.1 MB. Free memory is still 81.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is 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) [L5] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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, 0.1s 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 0.2.0-7b2dab5 [2021-10-11 02:30:48,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:30:48,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:30:48,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:30:48,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:30:48,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:30:48,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:30:48,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:30:48,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:30:48,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:30:48,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:30:48,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:30:48,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:30:48,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:30:48,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:30:48,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:30:48,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:30:48,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:30:48,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:30:48,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:30:48,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:30:48,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:30:48,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:30:48,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:30:48,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:30:48,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:30:48,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:30:48,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:30:48,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:30:48,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:30:48,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:30:48,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:30:48,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:30:48,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:30:48,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:30:48,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:30:48,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:30:48,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:30:48,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:30:48,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:30:48,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:30:48,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:30:48,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:30:48,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:30:48,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:30:48,412 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:30:48,413 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:30:48,413 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:30:48,413 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:30:48,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:30:48,413 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:30:48,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:30:48,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:30:48,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:30:48,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:30:48,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:30:48,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:30:48,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:30:48,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:30:48,418 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:30:48,418 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:30:48,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:30:48,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:30:48,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:30:48,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:30:48,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:30:48,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:30:48,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:30:48,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:48,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:30:48,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:30:48,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:30:48,421 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:30:48,421 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:30:48,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:30:48,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:30:48,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:30:48,422 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_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2021-10-11 02:30:48,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:30:48,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:30:48,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:30:48,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:30:48,821 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:30:48,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-10-11 02:30:48,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/8079aff11/a4632fb853a94f7cb89e674e5f275b03/FLAG2e71e6b7e [2021-10-11 02:30:49,469 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:30:49,469 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-10-11 02:30:49,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/8079aff11/a4632fb853a94f7cb89e674e5f275b03/FLAG2e71e6b7e [2021-10-11 02:30:49,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/data/8079aff11/a4632fb853a94f7cb89e674e5f275b03 [2021-10-11 02:30:49,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:30:49,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:30:49,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:49,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:30:49,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:30:49,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:49" (1/1) ... [2021-10-11 02:30:49,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2a2011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:49, skipping insertion in model container [2021-10-11 02:30:49,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:49" (1/1) ... [2021-10-11 02:30:49,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:30:49,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:50,011 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2021-10-11 02:30:50,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:50,043 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:30:50,054 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2021-10-11 02:30:50,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:50,083 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:30:50,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50 WrapperNode [2021-10-11 02:30:50,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:50,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:50,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:30:50,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:30:50,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:50,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:30:50,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:30:50,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:30:50,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:30:50,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:30:50,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:30:50,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:30:50,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:30:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-11 02:30:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-11 02:30:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:30:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:30:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:30:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:30:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:30:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:30:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:30:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:30:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:30:50,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:30:50,996 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:30:50,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:50 BoogieIcfgContainer [2021-10-11 02:30:50,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:30:50,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:30:50,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:30:51,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:30:51,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:49" (1/3) ... [2021-10-11 02:30:51,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aae28da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:51, skipping insertion in model container [2021-10-11 02:30:51,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50" (2/3) ... [2021-10-11 02:30:51,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aae28da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:51, skipping insertion in model container [2021-10-11 02:30:51,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:50" (3/3) ... [2021-10-11 02:30:51,010 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-10-11 02:30:51,025 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:30:51,029 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:30:51,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:30:51,083 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:30:51,083 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:30:51,084 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:30:51,084 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:30:51,084 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:30:51,084 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:30:51,085 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:30:51,085 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:30:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 02:30:51,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:30:51,107 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:51,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:51,109 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:51,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:51,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2021-10-11 02:30:51,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:51,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296286337] [2021-10-11 02:30:51,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:30:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:51,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-11 02:30:51,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:51,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:30:51,487 INFO L382 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 [2021-10-11 02:30:51,498 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:30:51,545 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:30:51,558 INFO L547 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. [2021-10-11 02:30:51,565 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:110, output treesize:112 [2021-10-11 02:30:51,942 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2021-10-11 02:30:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:51,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:51,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296286337] [2021-10-11 02:30:51,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:51,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:30:51,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368501393] [2021-10-11 02:30:51,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:30:51,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:51,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:30:51,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:30:51,975 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2021-10-11 02:30:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:52,593 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2021-10-11 02:30:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:30:52,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2021-10-11 02:30:52,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:52,611 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:30:52,611 INFO L226 Difference]: Without dead ends: 10 [2021-10-11 02:30:52,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:30:52,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-11 02:30:52,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-11 02:30:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 02:30:52,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-10-11 02:30:52,645 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2021-10-11 02:30:52,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:52,645 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-10-11 02:30:52,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:30:52,646 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-10-11 02:30:52,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:30:52,646 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:52,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:52,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:30:52,860 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:52,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:52,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1271627341, now seen corresponding path program 1 times [2021-10-11 02:30:52,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:52,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007374038] [2021-10-11 02:30:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:53,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:53,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:53,154 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:30:53,154 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:30:53,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:30:53,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:30:53 BoogieIcfgContainer [2021-10-11 02:30:53,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:30:53,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:30:53,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:30:53,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:30:53,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:50" (3/4) ... [2021-10-11 02:30:53,391 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:30:53,434 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50c119c-da42-46e6-bc4d-bb0f66b81402/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:30:53,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:30:53,435 INFO L168 Benchmark]: Toolchain (without parser) took 3607.34 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 36.4 MB in the beginning and 41.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:53,436 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:53,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.93 ms. Allocated memory is still 71.3 MB. Free memory was 36.3 MB in the beginning and 47.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:53,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.85 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 55.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:53,438 INFO L168 Benchmark]: Boogie Preprocessor took 44.95 ms. Allocated memory is still 71.3 MB. Free memory was 55.7 MB in the beginning and 54.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:53,438 INFO L168 Benchmark]: RCFGBuilder took 789.27 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 37.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:53,439 INFO L168 Benchmark]: TraceAbstraction took 2387.82 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 36.8 MB in the beginning and 43.5 MB in the end (delta: -6.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:53,440 INFO L168 Benchmark]: Witness Printer took 46.39 ms. Allocated memory is still 92.3 MB. Free memory was 43.5 MB in the beginning and 41.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:53,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.93 ms. Allocated memory is still 71.3 MB. Free memory was 36.3 MB in the beginning and 47.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.85 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 55.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.95 ms. Allocated memory is still 71.3 MB. Free memory was 55.7 MB in the beginning and 54.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 789.27 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 37.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2387.82 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 36.8 MB in the beginning and 43.5 MB in the end (delta: -6.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * Witness Printer took 46.39 ms. Allocated memory is still 92.3 MB. Free memory was 43.5 MB in the beginning and 41.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call to reach_error is reachable a call to reach_error is reachable We found a 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 [L5] COND TRUE !(cond) [L5] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 16 SDslu, 13 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 3 QuantifiedInterpolants, 2760 SizeOfPredicates, 3 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! Received shutdown request...