./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8 --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 78ea4619176830aa2eaba3eb142f65766ef4226b ...................................................................................................................................................................................................................................................................................................................................................... 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_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8 --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 78ea4619176830aa2eaba3eb142f65766ef4226b ...................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 07:39:00,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:39:00,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:39:00,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:39:00,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:39:00,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:39:00,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:39:00,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:39:00,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:39:00,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:39:00,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:39:00,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:39:00,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:39:00,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:39:00,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:39:00,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:39:00,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:39:00,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:39:00,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:39:00,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:39:00,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:39:00,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:39:00,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:39:00,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:39:00,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:39:00,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:39:00,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:39:00,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:39:00,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:39:00,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:39:00,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:39:00,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:39:00,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:39:00,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:39:00,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:39:00,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:39:00,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:39:00,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:39:00,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:39:00,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:39:00,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:39:00,555 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:39:00,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:39:00,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:39:00,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:39:00,605 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:39:00,605 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:39:00,605 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:39:00,605 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:39:00,606 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:39:00,612 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:39:00,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:39:00,613 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:39:00,614 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:39:00,614 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:39:00,614 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:39:00,614 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:39:00,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:39:00,615 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:39:00,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:39:00,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:39:00,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:39:00,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:39:00,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:39:00,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:39:00,617 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:39:00,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:39:00,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:39:00,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:39:00,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:39:00,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:39:00,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:39:00,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:39:00,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:39:00,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:39:00,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:39:00,620 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:39:00,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:39:00,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:39:00,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:39:00,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:39:00,621 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_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2021-10-13 07:39:00,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:39:00,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:39:00,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:39:00,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:39:00,921 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:39:00,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2021-10-13 07:39:01,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/04b554acf/9ebddc848ef949469a5193183c644d44/FLAGfe99fdc67 [2021-10-13 07:39:01,499 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:39:01,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2021-10-13 07:39:01,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/04b554acf/9ebddc848ef949469a5193183c644d44/FLAGfe99fdc67 [2021-10-13 07:39:01,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/04b554acf/9ebddc848ef949469a5193183c644d44 [2021-10-13 07:39:01,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:39:01,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:39:01,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:39:01,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:39:01,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:39:01,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:39:01" (1/1) ... [2021-10-13 07:39:01,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c9a225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:01, skipping insertion in model container [2021-10-13 07:39:01,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:39:01" (1/1) ... [2021-10-13 07:39:01,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:39:01,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:39:02,127 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_e428d6f6-c072-4fc4-8613-e0a851c0fbde/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2021-10-13 07:39:02,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:39:02,139 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:39:02,185 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_e428d6f6-c072-4fc4-8613-e0a851c0fbde/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2021-10-13 07:39:02,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:39:02,202 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:39:02,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02 WrapperNode [2021-10-13 07:39:02,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:39:02,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:39:02,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:39:02,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:39:02,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:39:02,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:39:02,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:39:02,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:39:02,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:39:02,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:39:02,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:39:02,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:39:02,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (1/1) ... [2021-10-13 07:39:02,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:39:02,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:39:02,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:39:02,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:39:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:39:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:39:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:39:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 07:39:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 07:39:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:39:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:39:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:39:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 07:39:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:39:03,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:39:03,021 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 07:39:03,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:03 BoogieIcfgContainer [2021-10-13 07:39:03,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:39:03,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:39:03,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:39:03,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:39:03,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:39:01" (1/3) ... [2021-10-13 07:39:03,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cde5a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:39:03, skipping insertion in model container [2021-10-13 07:39:03,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:02" (2/3) ... [2021-10-13 07:39:03,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cde5a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:39:03, skipping insertion in model container [2021-10-13 07:39:03,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:03" (3/3) ... [2021-10-13 07:39:03,035 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2021-10-13 07:39:03,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:39:03,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:39:03,100 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:39:03,107 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 [2021-10-13 07:39:03,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:39:03,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 35 states have internal predecessors, (59), 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) [2021-10-13 07:39:03,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:39:03,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:03,129 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:39:03,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:03,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:03,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1626355928, now seen corresponding path program 1 times [2021-10-13 07:39:03,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:39:03,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436247386] [2021-10-13 07:39:03,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:03,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:39:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:03,311 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:39:03,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436247386] [2021-10-13 07:39:03,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436247386] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:03,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:03,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:39:03,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065882690] [2021-10-13 07:39:03,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:39:03,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:39:03,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:39:03,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:39:03,335 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 35 states have internal predecessors, (59), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 07:39:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:03,353 INFO L93 Difference]: Finished difference Result 71 states and 117 transitions. [2021-10-13 07:39:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:39:03,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-13 07:39:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:03,363 INFO L225 Difference]: With dead ends: 71 [2021-10-13 07:39:03,363 INFO L226 Difference]: Without dead ends: 34 [2021-10-13 07:39:03,366 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 [2021-10-13 07:39:03,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-13 07:39:03,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-13 07:39:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 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) [2021-10-13 07:39:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2021-10-13 07:39:03,398 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 11 [2021-10-13 07:39:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:03,398 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2021-10-13 07:39:03,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 07:39:03,399 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2021-10-13 07:39:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:39:03,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:03,400 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:39:03,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:39:03,401 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:03,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:03,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1720473580, now seen corresponding path program 1 times [2021-10-13 07:39:03,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:39:03,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052101542] [2021-10-13 07:39:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:03,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:39:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:39:03,513 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:39:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:39:03,719 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:39:03,719 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:39:03,725 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:39:03,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:39:03,734 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:39:03,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:39:03 BoogieIcfgContainer [2021-10-13 07:39:03,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:39:03,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:39:03,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:39:03,786 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:39:03,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:03" (3/4) ... [2021-10-13 07:39:03,790 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:39:03,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:39:03,792 INFO L168 Benchmark]: Toolchain (without parser) took 1920.31 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 58.5 MB in the beginning and 86.8 MB in the end (delta: -28.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:39:03,793 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 66.8 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:39:03,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.33 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 58.2 MB in the beginning and 93.2 MB in the end (delta: -34.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:03,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.36 ms. Allocated memory is still 121.6 MB. Free memory was 93.2 MB in the beginning and 91.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:03,795 INFO L168 Benchmark]: Boogie Preprocessor took 43.66 ms. Allocated memory is still 121.6 MB. Free memory was 91.1 MB in the beginning and 89.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:03,796 INFO L168 Benchmark]: RCFGBuilder took 704.52 ms. Allocated memory is still 121.6 MB. Free memory was 89.6 MB in the beginning and 68.0 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:03,797 INFO L168 Benchmark]: TraceAbstraction took 759.68 ms. Allocated memory is still 121.6 MB. Free memory was 68.0 MB in the beginning and 87.6 MB in the end (delta: -19.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:39:03,798 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 121.6 MB. Free memory was 87.6 MB in the beginning and 86.8 MB in the end (delta: 765.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:39:03,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 66.8 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.33 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 58.2 MB in the beginning and 93.2 MB in the end (delta: -34.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.36 ms. Allocated memory is still 121.6 MB. Free memory was 93.2 MB in the beginning and 91.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.66 ms. Allocated memory is still 121.6 MB. Free memory was 91.1 MB in the beginning and 89.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 704.52 ms. Allocated memory is still 121.6 MB. Free memory was 89.6 MB in the beginning and 68.0 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 759.68 ms. Allocated memory is still 121.6 MB. Free memory was 68.0 MB in the beginning and 87.6 MB in the end (delta: -19.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.45 ms. Allocated memory is still 121.6 MB. Free memory was 87.6 MB in the beginning and 86.8 MB in the end (delta: 765.8 kB). 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: 160]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 143, overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of bitwiseAnd at line 142, overapproximation of someBinaryDOUBLEComparisonOperation at line 72. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L155] double x = 1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={11:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={11:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={11:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={11:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={11:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L156] double res = __ieee754_exp(x); [L135] __int32_t hx, lx; VAL [halF_exp={11:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L159] COND TRUE !isinf_double(x) [L160] reach_error() VAL [halF_exp={11:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 633.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.6ms, AutomataDifference: 45.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 44 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=36occurred 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: 18.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.7ms SsaConstructionTime, 137.3ms SatisfiabilityAnalysisTime, 56.8ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-10-13 07:39:03,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/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-4e77c04 [2021-10-13 07:39:06,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:39:06,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:39:06,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:39:06,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:39:06,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:39:06,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:39:06,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:39:06,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:39:06,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:39:06,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:39:06,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:39:06,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:39:06,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:39:06,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:39:06,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:39:06,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:39:06,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:39:06,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:39:06,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:39:06,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:39:06,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:39:06,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:39:06,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:39:06,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:39:06,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:39:06,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:39:06,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:39:06,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:39:06,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:39:06,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:39:06,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:39:06,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:39:06,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:39:06,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:39:06,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:39:06,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:39:06,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:39:06,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:39:06,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:39:06,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:39:06,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:39:06,497 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:39:06,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:39:06,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:39:06,499 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:39:06,499 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:39:06,499 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:39:06,500 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:39:06,500 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:39:06,500 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:39:06,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:39:06,503 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:39:06,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:39:06,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:39:06,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:39:06,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:39:06,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:39:06,504 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:39:06,504 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:39:06,504 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:39:06,505 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:39:06,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:39:06,505 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:39:06,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:39:06,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:39:06,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:39:06,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:39:06,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:39:06,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:39:06,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:39:06,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:39:06,507 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:39:06,507 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:39:06,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:39:06,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:39:06,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:39:06,508 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_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2021-10-13 07:39:06,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:39:06,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:39:07,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:39:07,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:39:07,003 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:39:07,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2021-10-13 07:39:07,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/504a13e97/7ba7feb7da784169894d2dd99e08ec2a/FLAG3d03e45c1 [2021-10-13 07:39:07,664 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:39:07,665 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2021-10-13 07:39:07,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/504a13e97/7ba7feb7da784169894d2dd99e08ec2a/FLAG3d03e45c1 [2021-10-13 07:39:07,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/data/504a13e97/7ba7feb7da784169894d2dd99e08ec2a [2021-10-13 07:39:08,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:39:08,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:39:08,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:39:08,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:39:08,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:39:08,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:39:07" (1/1) ... [2021-10-13 07:39:08,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd33c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08, skipping insertion in model container [2021-10-13 07:39:08,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:39:07" (1/1) ... [2021-10-13 07:39:08,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:39:08,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:39:08,227 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_e428d6f6-c072-4fc4-8613-e0a851c0fbde/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2021-10-13 07:39:08,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:39:08,243 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:39:08,290 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_e428d6f6-c072-4fc4-8613-e0a851c0fbde/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2021-10-13 07:39:08,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:39:08,321 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:39:08,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08 WrapperNode [2021-10-13 07:39:08,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:39:08,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:39:08,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:39:08,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:39:08,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:39:08,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:39:08,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:39:08,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:39:08,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:39:08,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:39:08,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:39:08,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:39:08,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (1/1) ... [2021-10-13 07:39:08,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:39:08,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:39:08,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:39:08,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:39:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 07:39:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 07:39:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:39:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:39:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-13 07:39:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:39:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:39:08,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:39:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:39:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:39:20,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:39:20,555 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 07:39:20,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:20 BoogieIcfgContainer [2021-10-13 07:39:20,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:39:20,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:39:20,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:39:20,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:39:20,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:39:07" (1/3) ... [2021-10-13 07:39:20,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c6b2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:39:20, skipping insertion in model container [2021-10-13 07:39:20,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:08" (2/3) ... [2021-10-13 07:39:20,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c6b2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:39:20, skipping insertion in model container [2021-10-13 07:39:20,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:20" (3/3) ... [2021-10-13 07:39:20,568 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2021-10-13 07:39:20,575 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:39:20,575 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:39:20,625 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:39:20,632 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 [2021-10-13 07:39:20,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:39:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 41 states have (on average 1.6829268292682926) internal successors, (69), 42 states have internal predecessors, (69), 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) [2021-10-13 07:39:20,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:39:20,655 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:20,655 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:39:20,656 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:20,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:20,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2021-10-13 07:39:20,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:39:20,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789896120] [2021-10-13 07:39:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:20,677 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:39:20,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:39:20,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:39:20,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:39:20,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:39:20,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:39:20,966 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 [2021-10-13 07:39:20,971 INFO L168 Benchmark]: Toolchain (without parser) took 12967.97 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 30.5 MB in the end (delta: -219.9 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:20,972 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:39:20,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.43 ms. Allocated memory is still 54.5 MB. Free memory was 30.1 MB in the beginning and 30.4 MB in the end (delta: -240.2 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:20,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.23 ms. Allocated memory is still 54.5 MB. Free memory was 30.2 MB in the beginning and 28.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:20,973 INFO L168 Benchmark]: Boogie Preprocessor took 63.97 ms. Allocated memory is still 54.5 MB. Free memory was 28.0 MB in the beginning and 37.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:20,979 INFO L168 Benchmark]: RCFGBuilder took 12111.38 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.1 MB in the beginning and 41.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:20,981 INFO L168 Benchmark]: TraceAbstraction took 409.56 ms. Allocated memory is still 67.1 MB. Free memory was 40.6 MB in the beginning and 30.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:20,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.43 ms. Allocated memory is still 54.5 MB. Free memory was 30.1 MB in the beginning and 30.4 MB in the end (delta: -240.2 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.23 ms. Allocated memory is still 54.5 MB. Free memory was 30.2 MB in the beginning and 28.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.97 ms. Allocated memory is still 54.5 MB. Free memory was 28.0 MB in the beginning and 37.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12111.38 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.1 MB in the beginning and 41.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 409.56 ms. Allocated memory is still 67.1 MB. Free memory was 40.6 MB in the beginning and 30.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. 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. [2021-10-13 07:39:21,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e428d6f6-c072-4fc4-8613-e0a851c0fbde/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...