./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0530b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs --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 7a0b54cf42295c73e73456adf2d6e392c264723f ....................................................................................................................................................................................................................................................................................................................................................................... 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_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs --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 7a0b54cf42295c73e73456adf2d6e392c264723f ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:42:07,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:42:07,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:42:07,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:42:07,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:42:07,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:42:07,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:42:07,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:42:07,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:42:07,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:42:07,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:42:07,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:42:07,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:42:07,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:42:07,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:42:07,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:42:07,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:42:07,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:42:07,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:42:07,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:42:07,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:42:07,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:42:07,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:42:07,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:42:07,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:42:07,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:42:07,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:42:07,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:42:07,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:42:07,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:42:07,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:42:07,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:42:07,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:42:07,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:42:07,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:42:07,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:42:07,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:42:07,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:42:07,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:42:07,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:42:07,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:42:07,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:42:07,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:42:07,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:42:07,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:42:07,899 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:42:07,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:42:07,900 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:42:07,900 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:42:07,901 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:42:07,909 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:42:07,910 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:42:07,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:42:07,912 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:42:07,912 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:42:07,913 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:42:07,913 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:42:07,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:42:07,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:42:07,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:42:07,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:42:07,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:42:07,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:42:07,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:42:07,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:42:07,917 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:42:07,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:42:07,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:42:07,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:42:07,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:42:07,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:42:07,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:42:07,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:42:07,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:42:07,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:42:07,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:42:07,924 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:42:07,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:42:07,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:42:07,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:42:07,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:42:07,925 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_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0b54cf42295c73e73456adf2d6e392c264723f [2021-10-16 02:42:08,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:42:08,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:42:08,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:42:08,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:42:08,392 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:42:08,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0530b.c [2021-10-16 02:42:08,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/6175dff4e/2fd09fd93b5a4b2da4103a01ad8ba0c8/FLAGe126a628b [2021-10-16 02:42:09,249 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:42:09,250 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/sv-benchmarks/c/float-newlib/double_req_bl_0530b.c [2021-10-16 02:42:09,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/6175dff4e/2fd09fd93b5a4b2da4103a01ad8ba0c8/FLAGe126a628b [2021-10-16 02:42:09,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/6175dff4e/2fd09fd93b5a4b2da4103a01ad8ba0c8 [2021-10-16 02:42:09,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:42:09,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:42:09,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:09,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:42:09,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:42:09,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:09" (1/1) ... [2021-10-16 02:42:09,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a3cc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:09, skipping insertion in model container [2021-10-16 02:42:09,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:09" (1/1) ... [2021-10-16 02:42:09,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:42:09,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:42:10,087 WARN L228 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_1f8fa39a-c189-4f4d-8248-27433522d676/sv-benchmarks/c/float-newlib/double_req_bl_0530b.c[16384,16397] [2021-10-16 02:42:10,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:10,130 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:42:10,297 WARN L228 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_1f8fa39a-c189-4f4d-8248-27433522d676/sv-benchmarks/c/float-newlib/double_req_bl_0530b.c[16384,16397] [2021-10-16 02:42:10,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:10,325 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:42:10,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10 WrapperNode [2021-10-16 02:42:10,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:10,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:42:10,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:42:10,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:42:10,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:42:10,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:42:10,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:42:10,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:42:10,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:42:10,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:42:10,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:42:10,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:42:10,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (1/1) ... [2021-10-16 02:42:10,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:42:10,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:42:10,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:42:10,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:42:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:42:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:42:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:42:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:42:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:42:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 02:42:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:42:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:42:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:42:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:42:13,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:42:13,930 INFO L299 CfgBuilder]: Removed 229 assume(true) statements. [2021-10-16 02:42:13,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:13 BoogieIcfgContainer [2021-10-16 02:42:13,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:42:13,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:42:13,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:42:13,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:42:13,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:42:09" (1/3) ... [2021-10-16 02:42:13,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba79c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:13, skipping insertion in model container [2021-10-16 02:42:13,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:10" (2/3) ... [2021-10-16 02:42:13,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba79c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:13, skipping insertion in model container [2021-10-16 02:42:13,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:13" (3/3) ... [2021-10-16 02:42:13,948 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0530b.c [2021-10-16 02:42:13,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:42:13,956 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:42:14,025 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:42:14,032 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:42:14,032 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:42:14,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 308 states have (on average 1.7889610389610389) internal successors, (551), 309 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:42:14,066 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:14,067 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:42:14,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:42:14,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:14,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1923622295, now seen corresponding path program 1 times [2021-10-16 02:42:14,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:42:14,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356032553] [2021-10-16 02:42:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:14,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:42:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:14,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:14,441 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:42:14,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356032553] [2021-10-16 02:42:14,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356032553] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:42:14,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:42:14,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:42:14,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969432772] [2021-10-16 02:42:14,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:42:14,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:42:14,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:42:14,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:42:14,474 INFO L87 Difference]: Start difference. First operand has 310 states, 308 states have (on average 1.7889610389610389) internal successors, (551), 309 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:14,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:14,583 INFO L93 Difference]: Finished difference Result 619 states and 1101 transitions. [2021-10-16 02:42:14,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:42:14,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-16 02:42:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:14,615 INFO L225 Difference]: With dead ends: 619 [2021-10-16 02:42:14,616 INFO L226 Difference]: Without dead ends: 308 [2021-10-16 02:42:14,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:42:14,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-10-16 02:42:14,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2021-10-16 02:42:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.280130293159609) internal successors, (393), 307 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 393 transitions. [2021-10-16 02:42:14,737 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 393 transitions. Word has length 9 [2021-10-16 02:42:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:14,738 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 393 transitions. [2021-10-16 02:42:14,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 393 transitions. [2021-10-16 02:42:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:42:14,740 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:14,740 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:42:14,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:42:14,741 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:42:14,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:14,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1802917164, now seen corresponding path program 1 times [2021-10-16 02:42:14,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:42:14,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397241436] [2021-10-16 02:42:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:14,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:42:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:42:15,007 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:42:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:42:15,205 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:42:15,205 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:42:15,207 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:42:15,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:42:15,216 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:42:15,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:42:15 BoogieIcfgContainer [2021-10-16 02:42:15,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:42:15,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:42:15,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:42:15,320 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:42:15,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:13" (3/4) ... [2021-10-16 02:42:15,326 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:42:15,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:42:15,331 INFO L168 Benchmark]: Toolchain (without parser) took 5863.63 ms. Allocated memory was 115.3 MB in the beginning and 209.7 MB in the end (delta: 94.4 MB). Free memory was 85.2 MB in the beginning and 166.6 MB in the end (delta: -81.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:15,332 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 115.3 MB. Free memory was 68.7 MB in the beginning and 68.6 MB in the end (delta: 63.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:42:15,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.99 ms. Allocated memory is still 115.3 MB. Free memory was 85.0 MB in the beginning and 71.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:15,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 185.32 ms. Allocated memory is still 115.3 MB. Free memory was 71.5 MB in the beginning and 61.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:15,344 INFO L168 Benchmark]: Boogie Preprocessor took 279.80 ms. Allocated memory was 115.3 MB in the beginning and 153.1 MB in the end (delta: 37.7 MB). Free memory was 61.6 MB in the beginning and 118.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:15,345 INFO L168 Benchmark]: RCFGBuilder took 3142.44 ms. Allocated memory was 153.1 MB in the beginning and 209.7 MB in the end (delta: 56.6 MB). Free memory was 118.9 MB in the beginning and 145.5 MB in the end (delta: -26.6 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:15,346 INFO L168 Benchmark]: TraceAbstraction took 1380.46 ms. Allocated memory is still 209.7 MB. Free memory was 145.5 MB in the beginning and 166.6 MB in the end (delta: -21.2 MB). Peak memory consumption was 62.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:15,346 INFO L168 Benchmark]: Witness Printer took 7.23 ms. Allocated memory is still 209.7 MB. Free memory is still 166.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:42:15,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 115.3 MB. Free memory was 68.7 MB in the beginning and 68.6 MB in the end (delta: 63.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 856.99 ms. Allocated memory is still 115.3 MB. Free memory was 85.0 MB in the beginning and 71.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 185.32 ms. Allocated memory is still 115.3 MB. Free memory was 71.5 MB in the beginning and 61.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 279.80 ms. Allocated memory was 115.3 MB in the beginning and 153.1 MB in the end (delta: 37.7 MB). Free memory was 61.6 MB in the beginning and 118.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3142.44 ms. Allocated memory was 153.1 MB in the beginning and 209.7 MB in the end (delta: 56.6 MB). Free memory was 118.9 MB in the beginning and 145.5 MB in the end (delta: -26.6 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1380.46 ms. Allocated memory is still 209.7 MB. Free memory was 145.5 MB in the beginning and 166.6 MB in the end (delta: -21.2 MB). Peak memory consumption was 62.9 MB. Max. memory is 16.1 GB. * Witness Printer took 7.23 ms. Allocated memory is still 209.7 MB. Free memory is still 166.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 662]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 538, overapproximation of bitwiseAnd at line 624, overapproximation of someBinaryArithmeticDOUBLEoperation at line 629, overapproximation of someBinaryDOUBLEComparisonOperation at line 661. Possible FailurePath: [L22] static const double huge_floor = 1.0e300; [L108-L110] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L179] static const int init_jk_krempio[] = {2, 3, 4, 6}; [L181-L186] static const double PIo2_krempio[] = { 1.57079625129699707031e+00, 7.54978941586159635335e-08, 5.39030252995776476554e-15, 3.28200341580791294123e-22, 1.27065575308067607349e-29, 1.22933308981111328932e-36, 2.73370053816464559624e-44, 2.16741683877804819444e-51, }; [L188-L190] static const double zero_krempio = 0.0, one_krempio = 1.0, two24_krempio = 1.67772160000000000000e+07, twon24_krempio = 5.96046447753906250000e-08; [L365-L376] static const __int32_t two_over_pi_rempio[] = { 0xA2F983, 0x6E4E44, 0x1529FC, 0x2757D1, 0xF534DD, 0xC0DB62, 0x95993C, 0x439041, 0xFE5163, 0xABDEBB, 0xC561B7, 0x246E3A, 0x424DD2, 0xE00649, 0x2EEA09, 0xD1921C, 0xFE1DEB, 0x1CB129, 0xA73EE8, 0x8235F5, 0x2EBB44, 0x84E99C, 0x7026B4, 0x5F7E41, 0x3991D6, 0x398353, 0x39F49C, 0x845F8B, 0xBDF928, 0x3B1FF8, 0x97FFDE, 0x05980F, 0xEF2F11, 0x8B5A0A, 0x6D1F6D, 0x367ECF, 0x27CB09, 0xB74F46, 0x3F669E, 0x5FEA2D, 0x7527BA, 0xC7EBE5, 0xF17B3D, 0x0739F7, 0x8A5292, 0xEA6BFB, 0x5FB11F, 0x8D5D08, 0x560330, 0x46FC7B, 0x6BABF0, 0xCFBC20, 0x9AF436, 0x1DA9E3, 0x91615E, 0xE61B08, 0x659985, 0x5F14A0, 0x68408D, 0xFFD880, 0x4D7327, 0x310606, 0x1556CA, 0x73A8C9, 0x60E27B, 0xC08C6B, }; [L378-L385] static const __int32_t npio2_hw_rempio[] = { 0x3FF921FB, 0x400921FB, 0x4012D97C, 0x401921FB, 0x401F6A7A, 0x4022D97C, 0x4025FDBB, 0x402921FB, 0x402C463A, 0x402F6A7A, 0x4031475C, 0x4032D97C, 0x40346B9C, 0x4035FDBB, 0x40378FDB, 0x403921FB, 0x403AB41B, 0x403C463A, 0x403DD85A, 0x403F6A7A, 0x40407E4C, 0x4041475C, 0x4042106C, 0x4042D97C, 0x4043A28C, 0x40446B9C, 0x404534AC, 0x4045FDBB, 0x4046C6CB, 0x40478FDB, 0x404858EB, 0x404921FB, }; [L387-L396] static const double zero_rempio = 0.00000000000000000000e+00, half_rempio = 5.00000000000000000000e-01, two24_rempio = 1.67772160000000000000e+07, invpio2_rempio = 6.36619772367581382433e-01, pio2_1_rempio = 1.57079632673412561417e+00, pio2_1t_rempio = 6.07710050650619224932e-11, pio2_2_rempio = 6.07710050630396597660e-11, pio2_2t_rempio = 2.02226624879595063154e-21, pio2_3_rempio = 2.02226624871116645580e-21, pio2_3t_rempio = 8.47842766036889956997e-32; [L529-L540] static const double one_ktan = 1.00000000000000000000e+00, pio4_ktan = 7.85398163397448278999e-01, pio4lo_ktan = 3.06161699786838301793e-17, T[] = { 3.33333333333334091986e-01, 1.33333333333201242699e-01, 5.39682539762260521377e-02, 2.18694882948595424599e-02, 8.86323982359930005737e-03, 3.59207910759131235356e-03, 1.45620945432529025516e-03, 5.88041240820264096874e-04, 2.46463134818469906812e-04, 7.81794442939557092300e-05, 7.14072491382608190305e-05, -1.85586374855275456654e-05, 2.59073051863633712884e-05, }; [L657] double x = -0.0; [L615] double y[2], z = 0.0; [L616] __int32_t n, ix; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={15:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={11:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={17:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={7:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L619] ieee_double_shape_type gh_u; [L620] gh_u.value = (x) [L621] EXPR gh_u.parts.msw [L621] (ix) = gh_u.parts.msw [L624] ix &= 0x7fffffff VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={15:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={11:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={17:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={7:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L625] COND FALSE !(ix <= 0x3fe921fb) VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={15:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={11:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={17:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={7:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L628] COND TRUE ix >= 0x7ff00000 [L629] return x - x; [L629] return x - x; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={15:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={11:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={17:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={7:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L658] double res = tan_double(x); [L661] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={15:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={11:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={17:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={7:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] [L661] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L662] reach_error() VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={15:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={11:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={10:0}, pio4_ktan=785398163397448278999/1000000000000000000000, pio4lo_ktan=306161699786838301793/10000000000000000000000000000000000000, T={17:0}, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={7:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 310 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1191.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 14.1ms, AutomataDifference: 172.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 395 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 90.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.4ms SsaConstructionTime, 347.1ms SatisfiabilityAnalysisTime, 149.4ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:42:15,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:42:18,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:42:18,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:42:18,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:42:18,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:42:18,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:42:18,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:42:18,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:42:18,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:42:18,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:42:18,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:42:18,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:42:18,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:42:18,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:42:18,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:42:18,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:42:18,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:42:18,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:42:18,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:42:18,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:42:18,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:42:18,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:42:18,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:42:18,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:42:18,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:42:18,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:42:18,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:42:18,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:42:18,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:42:18,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:42:18,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:42:18,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:42:18,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:42:18,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:42:18,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:42:18,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:42:18,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:42:18,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:42:18,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:42:18,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:42:18,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:42:18,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:42:18,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:42:18,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:42:18,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:42:18,731 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:42:18,731 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:42:18,732 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:42:18,732 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:42:18,732 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:42:18,732 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:42:18,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:42:18,736 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:42:18,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:42:18,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:42:18,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:42:18,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:42:18,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:42:18,737 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:42:18,737 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:42:18,738 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:42:18,738 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:42:18,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:42:18,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:42:18,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:42:18,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:42:18,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:42:18,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:42:18,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:42:18,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:42:18,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:42:18,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:42:18,740 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:42:18,741 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:42:18,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:42:18,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:42:18,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:42:18,742 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_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0b54cf42295c73e73456adf2d6e392c264723f [2021-10-16 02:42:19,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:42:19,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:42:19,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:42:19,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:42:19,297 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:42:19,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0530b.c [2021-10-16 02:42:19,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/c045bbd81/5ade97884fcd41c7aede11dc96d6f91c/FLAG3363d831f [2021-10-16 02:42:20,112 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:42:20,113 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/sv-benchmarks/c/float-newlib/double_req_bl_0530b.c [2021-10-16 02:42:20,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/c045bbd81/5ade97884fcd41c7aede11dc96d6f91c/FLAG3363d831f [2021-10-16 02:42:20,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/data/c045bbd81/5ade97884fcd41c7aede11dc96d6f91c [2021-10-16 02:42:20,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:42:20,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:42:20,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:20,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:42:20,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:42:20,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:20" (1/1) ... [2021-10-16 02:42:20,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5300057a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:20, skipping insertion in model container [2021-10-16 02:42:20,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:20" (1/1) ... [2021-10-16 02:42:20,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:42:20,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:42:20,929 WARN L228 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_1f8fa39a-c189-4f4d-8248-27433522d676/sv-benchmarks/c/float-newlib/double_req_bl_0530b.c[16384,16397] [2021-10-16 02:42:20,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:20,963 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:42:21,162 WARN L228 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_1f8fa39a-c189-4f4d-8248-27433522d676/sv-benchmarks/c/float-newlib/double_req_bl_0530b.c[16384,16397] [2021-10-16 02:42:21,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:21,240 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:42:21,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21 WrapperNode [2021-10-16 02:42:21,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:21,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:42:21,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:42:21,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:42:21,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:42:21,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:42:21,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:42:21,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:42:21,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:42:21,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:42:21,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:42:21,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:42:21,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:42:21,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:42:21,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:42:21,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:42:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-16 02:42:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-16 02:42:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:42:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-16 02:42:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:42:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-16 02:42:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:42:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:42:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:42:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:42:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:44:06,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:44:06,415 INFO L299 CfgBuilder]: Removed 229 assume(true) statements. [2021-10-16 02:44:06,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:06 BoogieIcfgContainer [2021-10-16 02:44:06,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:44:06,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:44:06,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:44:06,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:44:06,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:42:20" (1/3) ... [2021-10-16 02:44:06,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad88ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:06, skipping insertion in model container [2021-10-16 02:44:06,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21" (2/3) ... [2021-10-16 02:44:06,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad88ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:06, skipping insertion in model container [2021-10-16 02:44:06,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:06" (3/3) ... [2021-10-16 02:44:06,443 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0530b.c [2021-10-16 02:44:06,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:44:06,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:44:06,537 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:44:06,544 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:44:06,545 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:44:06,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 415 states, 413 states have (on average 1.7263922518159807) internal successors, (713), 414 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:44:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:44:06,592 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:44:06,593 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:44:06,594 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:44:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:44:06,601 INFO L82 PathProgramCache]: Analyzing trace with hash 571491005, now seen corresponding path program 1 times [2021-10-16 02:44:06,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:44:06,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37290606] [2021-10-16 02:44:06,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:44:06,621 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:44:06,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:44:06,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:44:06,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:44:06,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:44:06,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:44:06,997 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-16 02:44:07,004 INFO L168 Benchmark]: Toolchain (without parser) took 106659.41 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 33.8 MB in the beginning and 35.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:07,004 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:44:07,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 895.58 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 33.4 MB in the beginning and 56.1 MB in the end (delta: -22.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:07,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 201.36 ms. Allocated memory is still 79.7 MB. Free memory was 56.1 MB in the beginning and 46.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:07,007 INFO L168 Benchmark]: Boogie Preprocessor took 229.60 ms. Allocated memory is still 79.7 MB. Free memory was 46.4 MB in the beginning and 36.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:07,014 INFO L168 Benchmark]: RCFGBuilder took 104752.29 ms. Allocated memory is still 79.7 MB. Free memory was 36.0 MB in the beginning and 28.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:07,018 INFO L168 Benchmark]: TraceAbstraction took 566.25 ms. Allocated memory is still 79.7 MB. Free memory was 27.5 MB in the beginning and 35.7 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:44:07,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 895.58 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 33.4 MB in the beginning and 56.1 MB in the end (delta: -22.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 201.36 ms. Allocated memory is still 79.7 MB. Free memory was 56.1 MB in the beginning and 46.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 229.60 ms. Allocated memory is still 79.7 MB. Free memory was 46.4 MB in the beginning and 36.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 104752.29 ms. Allocated memory is still 79.7 MB. Free memory was 36.0 MB in the beginning and 28.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 566.25 ms. Allocated memory is still 79.7 MB. Free memory was 27.5 MB in the beginning and 35.7 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:44:07,263 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-16 02:44:07,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f8fa39a-c189-4f4d-8248-27433522d676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...