./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur --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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:46:39,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:46:39,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:46:39,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:46:39,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:46:39,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:46:39,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:46:39,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:46:39,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:46:39,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:46:39,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:46:39,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:46:39,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:46:39,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:46:39,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:46:39,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:46:39,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:46:39,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:46:39,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:46:39,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:46:39,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:46:39,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:46:39,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:46:39,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:46:39,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:46:39,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:46:39,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:46:39,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:46:39,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:46:39,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:46:39,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:46:39,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:46:39,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:46:39,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:46:39,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:46:39,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:46:39,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:46:39,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:46:39,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:46:39,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:46:39,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:46:39,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:46:39,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:46:39,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:46:39,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:46:39,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:46:39,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:46:39,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:46:39,757 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:46:39,757 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:46:39,757 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:46:39,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:46:39,758 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:46:39,758 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:46:39,758 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:46:39,759 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:46:39,759 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:46:39,759 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:46:39,760 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:46:39,760 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:46:39,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:46:39,761 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:46:39,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:46:39,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:46:39,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:46:39,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:46:39,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:46:39,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:46:39,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:46:39,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:46:39,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:46:39,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:46:39,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:46:39,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:46:39,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:46:39,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:46:39,766 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:46:39,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:46:39,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:46:39,766 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:46:39,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:46:39,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:46:39,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:46:39,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2022-11-25 23:46:40,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:46:40,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:46:40,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:46:40,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:46:40,157 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:46:40,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2022-11-25 23:46:43,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:46:43,633 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:46:43,635 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i [2022-11-25 23:46:43,643 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data/7d5098170/ac0deb116bc74342907b614c6ffe3898/FLAG1ea1ea671 [2022-11-25 23:46:43,662 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data/7d5098170/ac0deb116bc74342907b614c6ffe3898 [2022-11-25 23:46:43,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:46:43,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:46:43,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:46:43,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:46:43,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:46:43,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:46:43" (1/1) ... [2022-11-25 23:46:43,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4409c747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:43, skipping insertion in model container [2022-11-25 23:46:43,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:46:43" (1/1) ... [2022-11-25 23:46:43,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:46:43,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:46:44,013 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2022-11-25 23:46:44,025 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2022-11-25 23:46:44,030 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2022-11-25 23:46:44,036 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2022-11-25 23:46:44,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:46:44,052 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:46:44,098 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2022-11-25 23:46:44,101 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2022-11-25 23:46:44,103 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2022-11-25 23:46:44,106 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2022-11-25 23:46:44,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:46:44,136 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:46:44,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44 WrapperNode [2022-11-25 23:46:44,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:46:44,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:46:44,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:46:44,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:46:44,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,185 INFO L138 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2022-11-25 23:46:44,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:46:44,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:46:44,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:46:44,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:46:44,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:46:44,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:46:44,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:46:44,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:46:44,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (1/1) ... [2022-11-25 23:46:44,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:46:44,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:46:44,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:46:44,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:46:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:46:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2022-11-25 23:46:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2022-11-25 23:46:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:46:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:46:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 23:46:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:46:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 23:46:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2022-11-25 23:46:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2022-11-25 23:46:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:46:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:46:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:46:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:46:44,481 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:46:44,483 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:46:44,858 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:46:44,947 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:46:44,951 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:46:44,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:46:44 BoogieIcfgContainer [2022-11-25 23:46:44,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:46:44,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:46:44,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:46:44,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:46:44,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:46:43" (1/3) ... [2022-11-25 23:46:44,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abcb374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:46:44, skipping insertion in model container [2022-11-25 23:46:44,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:44" (2/3) ... [2022-11-25 23:46:44,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abcb374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:46:44, skipping insertion in model container [2022-11-25 23:46:44,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:46:44" (3/3) ... [2022-11-25 23:46:44,973 INFO L112 eAbstractionObserver]: Analyzing ICFG float22.i [2022-11-25 23:46:44,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:46:44,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 23:46:45,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:46:45,068 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fd34ccf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:46:45,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 23:46:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:46:45,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:46:45,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:45,084 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:45,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:46:45,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash -682083065, now seen corresponding path program 1 times [2022-11-25 23:46:45,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:45,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681565616] [2022-11-25 23:46:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:45,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:46:45,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:46:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:46:45,582 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:46:45,584 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:46:45,586 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-25 23:46:45,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-11-25 23:46:45,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-11-25 23:46:45,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-25 23:46:45,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:46:45,595 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:46:45,600 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:46:45,609 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2022-11-25 23:46:45,610 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2022-11-25 23:46:45,610 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2022-11-25 23:46:45,610 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2022-11-25 23:46:45,611 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2022-11-25 23:46:45,611 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2022-11-25 23:46:45,611 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2022-11-25 23:46:45,611 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2022-11-25 23:46:45,612 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2022-11-25 23:46:45,612 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2022-11-25 23:46:45,612 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2022-11-25 23:46:45,612 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2022-11-25 23:46:45,613 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2022-11-25 23:46:45,613 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2022-11-25 23:46:45,613 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2022-11-25 23:46:45,613 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2022-11-25 23:46:45,614 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2022-11-25 23:46:45,614 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2022-11-25 23:46:45,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:46:45 BoogieIcfgContainer [2022-11-25 23:46:45,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:46:45,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:46:45,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:46:45,637 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:46:45,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:46:44" (3/4) ... [2022-11-25 23:46:45,641 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:46:45,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:46:45,643 INFO L158 Benchmark]: Toolchain (without parser) took 1971.74ms. Allocated memory is still 174.1MB. Free memory was 133.1MB in the beginning and 131.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2022-11-25 23:46:45,644 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 90.6MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:46:45,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.67ms. Allocated memory is still 174.1MB. Free memory was 132.5MB in the beginning and 120.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:46:45,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.25ms. Allocated memory is still 174.1MB. Free memory was 120.8MB in the beginning and 118.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:46:45,646 INFO L158 Benchmark]: Boogie Preprocessor took 35.71ms. Allocated memory is still 174.1MB. Free memory was 118.7MB in the beginning and 117.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:46:45,646 INFO L158 Benchmark]: RCFGBuilder took 731.30ms. Allocated memory is still 174.1MB. Free memory was 117.2MB in the beginning and 96.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:46:45,647 INFO L158 Benchmark]: TraceAbstraction took 679.18ms. Allocated memory is still 174.1MB. Free memory was 95.6MB in the beginning and 131.4MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:46:45,647 INFO L158 Benchmark]: Witness Printer took 5.12ms. Allocated memory is still 174.1MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:46:45,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 90.6MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.67ms. Allocated memory is still 174.1MB. Free memory was 132.5MB in the beginning and 120.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.25ms. Allocated memory is still 174.1MB. Free memory was 120.8MB in the beginning and 118.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.71ms. Allocated memory is still 174.1MB. Free memory was 118.7MB in the beginning and 117.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 731.30ms. Allocated memory is still 174.1MB. Free memory was 117.2MB in the beginning and 96.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 679.18ms. Allocated memory is still 174.1MB. Free memory was 95.6MB in the beginning and 131.4MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.12ms. Allocated memory is still 174.1MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 130. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; VAL [f1={6:0}, f2={5:0}] [L141] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L141] RET, EXPR returnsStructure(0) VAL [f1={6:0}, f2={5:0}, returnsStructure(0)=0returnsStructure(0)=4294967328returnsStructure(0)=0returnsStructure(0)=0] [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L142] RET, EXPR returnsStructure(1) VAL [f1={6:0}, f2={5:0}, returnsStructure(1)=4294967321returnsStructure(1)=0returnsStructure(1)=1returnsStructure(1)=0] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [f1={6:0}, f1.ieee.negative=4294967297, f2={5:0}, f2.ieee.negative=1] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [f1={6:0}, f2={5:0}] - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:46:45,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur --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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:46:48,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:46:48,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:46:48,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:46:48,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:46:48,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:46:48,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:46:48,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:46:48,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:46:48,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:46:48,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:46:48,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:46:48,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:46:48,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:46:48,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:46:48,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:46:48,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:46:48,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:46:48,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:46:48,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:46:48,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:46:48,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:46:48,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:46:48,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:46:48,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:46:48,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:46:48,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:46:48,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:46:48,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:46:48,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:46:48,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:46:48,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:46:48,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:46:48,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:46:48,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:46:48,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:46:48,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:46:48,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:46:48,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:46:48,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:46:48,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:46:48,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 23:46:48,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:46:48,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:46:48,808 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:46:48,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:46:48,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:46:48,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:46:48,811 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:46:48,811 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:46:48,811 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:46:48,812 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:46:48,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:46:48,814 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:46:48,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:46:48,815 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:46:48,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:46:48,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:46:48,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:46:48,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:46:48,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:46:48,817 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:46:48,817 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:46:48,817 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:46:48,818 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:46:48,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:46:48,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:46:48,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:46:48,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:46:48,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:46:48,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:46:48,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:46:48,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:46:48,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:46:48,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:46:48,822 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:46:48,822 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:46:48,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:46:48,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:46:48,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:46:48,823 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2022-11-25 23:46:49,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:46:49,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:46:49,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:46:49,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:46:49,347 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:46:49,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2022-11-25 23:46:52,636 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:46:52,866 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:46:52,867 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i [2022-11-25 23:46:52,876 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data/3e792d802/6ce17fdb93994a9e85cdf0e48d707a4e/FLAG14d77c48a [2022-11-25 23:46:52,899 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/data/3e792d802/6ce17fdb93994a9e85cdf0e48d707a4e [2022-11-25 23:46:52,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:46:52,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:46:52,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:46:52,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:46:52,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:46:52,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:46:52" (1/1) ... [2022-11-25 23:46:52,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490bc4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:52, skipping insertion in model container [2022-11-25 23:46:52,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:46:52" (1/1) ... [2022-11-25 23:46:52,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:46:52,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:46:53,224 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2022-11-25 23:46:53,229 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2022-11-25 23:46:53,231 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2022-11-25 23:46:53,234 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2022-11-25 23:46:53,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:46:53,256 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:46:53,309 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2022-11-25 23:46:53,317 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2022-11-25 23:46:53,322 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2022-11-25 23:46:53,330 WARN L237 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_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2022-11-25 23:46:53,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:46:53,358 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:46:53,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53 WrapperNode [2022-11-25 23:46:53,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:46:53,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:46:53,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:46:53,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:46:53,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,472 INFO L138 Inliner]: procedures = 24, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2022-11-25 23:46:53,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:46:53,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:46:53,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:46:53,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:46:53,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:46:53,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:46:53,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:46:53,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:46:53,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (1/1) ... [2022-11-25 23:46:53,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:46:53,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:46:53,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:46:53,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:46:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:46:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2022-11-25 23:46:53,677 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2022-11-25 23:46:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:46:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:46:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-25 23:46:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 23:46:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2022-11-25 23:46:53,678 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2022-11-25 23:46:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:46:53,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:46:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-25 23:46:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:46:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 23:46:53,832 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:46:53,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:46:54,202 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:46:54,226 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:46:54,227 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:46:54,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:46:54 BoogieIcfgContainer [2022-11-25 23:46:54,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:46:54,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:46:54,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:46:54,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:46:54,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:46:52" (1/3) ... [2022-11-25 23:46:54,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e61361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:46:54, skipping insertion in model container [2022-11-25 23:46:54,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:53" (2/3) ... [2022-11-25 23:46:54,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e61361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:46:54, skipping insertion in model container [2022-11-25 23:46:54,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:46:54" (3/3) ... [2022-11-25 23:46:54,257 INFO L112 eAbstractionObserver]: Analyzing ICFG float22.i [2022-11-25 23:46:54,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:46:54,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 23:46:54,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:46:54,393 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@59385d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:46:54,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 23:46:54,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:46:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:46:54,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:54,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:54,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:46:54,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:54,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2022-11-25 23:46:54,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:46:54,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579898664] [2022-11-25 23:46:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:54,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:46:54,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:46:54,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:46:54,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:46:54,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 139 [2022-11-25 23:46:54,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:46:54,817 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: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-25 23:46:54,822 INFO L158 Benchmark]: Toolchain (without parser) took 1917.75ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.4MB in the beginning and 42.4MB in the end (delta: -3.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-11-25 23:46:54,823 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:46:54,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.26ms. Allocated memory is still 65.0MB. Free memory was 39.2MB in the beginning and 26.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:46:54,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.69ms. Allocated memory is still 65.0MB. Free memory was 26.5MB in the beginning and 43.9MB in the end (delta: -17.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-11-25 23:46:54,825 INFO L158 Benchmark]: Boogie Preprocessor took 82.08ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 41.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:46:54,826 INFO L158 Benchmark]: RCFGBuilder took 670.54ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 41.6MB in the beginning and 56.4MB in the end (delta: -14.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-25 23:46:54,827 INFO L158 Benchmark]: TraceAbstraction took 588.49ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 42.4MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:46:54,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.26ms. Allocated memory is still 65.0MB. Free memory was 39.2MB in the beginning and 26.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.69ms. Allocated memory is still 65.0MB. Free memory was 26.5MB in the beginning and 43.9MB in the end (delta: -17.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.08ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 41.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 670.54ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 41.6MB in the beginning and 56.4MB in the end (delta: -14.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 588.49ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 42.4MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 23:46:54,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ba9b71-4f5e-46f4-b18c-47d6a02a5b78/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.