./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS --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 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da --- 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-8393723 [2022-11-19 07:27:16,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:27:16,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:27:16,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:27:16,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:27:16,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:27:16,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:27:16,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:27:16,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:27:16,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:27:16,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:27:16,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:27:16,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:27:16,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:27:16,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:27:16,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:27:16,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:27:16,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:27:16,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:27:16,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:27:16,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:27:16,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:27:16,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:27:16,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:27:16,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:27:16,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:27:16,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:27:16,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:27:16,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:27:16,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:27:16,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:27:16,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:27:16,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:27:16,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:27:16,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:27:16,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:27:16,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:27:16,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:27:16,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:27:16,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:27:16,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:27:16,739 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:27:16,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:27:16,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:27:16,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:27:16,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:27:16,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:27:16,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:27:16,767 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:27:16,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:27:16,767 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:27:16,767 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:27:16,768 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:27:16,768 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:27:16,768 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:27:16,768 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:27:16,768 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:27:16,769 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:27:16,769 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:27:16,769 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:27:16,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:27:16,770 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:27:16,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:27:16,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:27:16,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:27:16,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:27:16,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:27:16,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:27:16,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:27:16,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:27:16,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:27:16,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:27:16,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:27:16,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:27:16,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:16,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:27:16,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:27:16,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:27:16,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:27:16,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:27:16,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:27:16,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:27:16,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:27:16,775 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da [2022-11-19 07:27:17,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:27:17,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:27:17,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:27:17,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:27:17,071 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:27:17,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2022-11-19 07:27:17,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/5c554fa97/c0d6e2b191d64078b467e566b7ce5b2c/FLAGf11b8fcfc [2022-11-19 07:27:17,573 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:27:17,573 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2022-11-19 07:27:17,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/5c554fa97/c0d6e2b191d64078b467e566b7ce5b2c/FLAGf11b8fcfc [2022-11-19 07:27:17,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/5c554fa97/c0d6e2b191d64078b467e566b7ce5b2c [2022-11-19 07:27:17,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:27:17,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:27:17,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:17,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:27:17,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:27:17,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:17" (1/1) ... [2022-11-19 07:27:17,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c615cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:17, skipping insertion in model container [2022-11-19 07:27:17,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:17" (1/1) ... [2022-11-19 07:27:17,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:27:17,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:27:17,924 WARN L234 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2022-11-19 07:27:17,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:17,952 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:27:18,014 WARN L234 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2022-11-19 07:27:18,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:18,045 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:27:18,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18 WrapperNode [2022-11-19 07:27:18,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:18,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:18,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:27:18,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:27:18,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,108 INFO L138 Inliner]: procedures = 19, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 201 [2022-11-19 07:27:18,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:18,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:27:18,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:27:18,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:27:18,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:27:18,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:27:18,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:27:18,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:27:18,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:18,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:18,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:27:18,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:27:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:27:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:27:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:27:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-19 07:27:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:27:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-19 07:27:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:27:18,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:27:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:27:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-19 07:27:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:27:18,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:27:18,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:27:18,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:27:18,718 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:27:18,718 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 07:27:18,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:18 BoogieIcfgContainer [2022-11-19 07:27:18,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:27:18,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:27:18,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:27:18,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:27:18,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:17" (1/3) ... [2022-11-19 07:27:18,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aef8ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:18, skipping insertion in model container [2022-11-19 07:27:18,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (2/3) ... [2022-11-19 07:27:18,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aef8ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:18, skipping insertion in model container [2022-11-19 07:27:18,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:18" (3/3) ... [2022-11-19 07:27:18,743 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2022-11-19 07:27:18,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:27:18,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:27:18,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:27:18,898 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;@3b9438dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:27:18,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:27:18,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:18,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:27:18,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:18,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:18,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash -112100780, now seen corresponding path program 1 times [2022-11-19 07:27:18,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:18,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214307655] [2022-11-19 07:27:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:18,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:19,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:19,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214307655] [2022-11-19 07:27:19,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214307655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:19,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:19,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:27:19,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065121368] [2022-11-19 07:27:19,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:19,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:27:19,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:19,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:27:19,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:27:19,163 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:19,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:19,238 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2022-11-19 07:27:19,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:27:19,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:27:19,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:19,249 INFO L225 Difference]: With dead ends: 49 [2022-11-19 07:27:19,249 INFO L226 Difference]: Without dead ends: 23 [2022-11-19 07:27:19,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:27:19,266 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:19,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:27:19,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-19 07:27:19,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-19 07:27:19,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-19 07:27:19,303 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2022-11-19 07:27:19,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:19,303 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-19 07:27:19,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:19,304 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-19 07:27:19,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:27:19,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:19,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:19,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:27:19,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:19,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:19,307 INFO L85 PathProgramCache]: Analyzing trace with hash -923171131, now seen corresponding path program 1 times [2022-11-19 07:27:19,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:19,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983113827] [2022-11-19 07:27:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:19,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:27:19,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:27:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:27:19,491 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:27:19,491 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:27:19,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:27:19,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:27:19,504 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 07:27:19,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:27:19,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:27:19 BoogieIcfgContainer [2022-11-19 07:27:19,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:27:19,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:27:19,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:27:19,546 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:27:19,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:18" (3/4) ... [2022-11-19 07:27:19,550 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:27:19,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:27:19,554 INFO L158 Benchmark]: Toolchain (without parser) took 1944.16ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 64.3MB in the beginning and 68.2MB in the end (delta: -3.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 07:27:19,555 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 69.3MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:27:19,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.55ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 72.5MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:27:19,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.87ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:27:19,560 INFO L158 Benchmark]: Boogie Preprocessor took 45.84ms. Allocated memory is still 98.6MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:27:19,561 INFO L158 Benchmark]: RCFGBuilder took 565.27ms. Allocated memory is still 98.6MB. Free memory was 67.9MB in the beginning and 46.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-19 07:27:19,562 INFO L158 Benchmark]: TraceAbstraction took 822.62ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 46.1MB in the beginning and 68.8MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:27:19,566 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 119.5MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:27:19,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 69.3MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.55ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 72.5MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.87ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.84ms. Allocated memory is still 98.6MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.27ms. Allocated memory is still 98.6MB. Free memory was 67.9MB in the beginning and 46.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 822.62ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 46.1MB in the beginning and 68.8MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 119.5MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * 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 someBinaryFLOATComparisonOperation at line 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someUnaryFLOAToperation at line 139, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L14] static const float huge_floor = 1.0e30; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L139] float x = -0.0f; [L140] CALL, EXPR atan_float(x) [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [\old(x)=1000000000000000000000000000005, aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000005] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000005, aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000005] [L65] COND TRUE ix >= 0x50800000 [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [\old(x)=1000000000000000000000000000005, aT_atan={4:0}, atanhi_atan={5:0}, atanhi_atan[3]=1000000000000000000000000000001, atanhi_atan[3]=1000000000000000000000000000006, atanlo_atan={6:0}, atanlo_atan[3]=1000000000000000000000000000003, atanlo_atan[3]=1000000000000000000000000000002, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000005] [L140] RET, EXPR atan_float(x) [L140] float res = atan_float(x); [L143] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000004, res == -0.0f && __signbit_float(res) == 1=0, x=1000000000000000000000000000005] [L143] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L144] reach_error() VAL [aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000004, x=1000000000000000000000000000005] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:27:19,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS --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 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da --- 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-8393723 [2022-11-19 07:27:21,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:27:21,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:27:21,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:27:21,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:27:21,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:27:21,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:27:21,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:27:21,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:27:21,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:27:21,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:27:21,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:27:21,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:27:21,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:27:21,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:27:21,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:27:21,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:27:21,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:27:21,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:27:21,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:27:21,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:27:21,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:27:21,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:27:21,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:27:21,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:27:21,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:27:21,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:27:21,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:27:21,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:27:21,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:27:21,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:27:21,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:27:21,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:27:21,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:27:21,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:27:21,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:27:21,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:27:21,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:27:21,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:27:21,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:27:21,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:27:21,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:27:22,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:27:22,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:27:22,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:27:22,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:27:22,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:27:22,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:27:22,037 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:27:22,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:27:22,037 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:27:22,037 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:27:22,038 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:27:22,039 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:27:22,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:27:22,041 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:27:22,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:27:22,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:27:22,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:27:22,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:27:22,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:27:22,042 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:27:22,042 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:27:22,042 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:27:22,042 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:27:22,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:27:22,043 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:27:22,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:27:22,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:27:22,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:27:22,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:27:22,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:22,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:27:22,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:27:22,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:27:22,045 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:27:22,045 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:27:22,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:27:22,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:27:22,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:27:22,046 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 075a76806290abf75c2d2bbc3aed8400bd808fbae1a9b71a2d432aac31dd29da [2022-11-19 07:27:22,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:27:22,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:27:22,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:27:22,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:27:22,482 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:27:22,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2022-11-19 07:27:22,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/4729e58f2/66a8749312a0497fb40ca696cf03bb45/FLAGda8d0c5a2 [2022-11-19 07:27:23,171 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:27:23,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2022-11-19 07:27:23,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/4729e58f2/66a8749312a0497fb40ca696cf03bb45/FLAGda8d0c5a2 [2022-11-19 07:27:23,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/data/4729e58f2/66a8749312a0497fb40ca696cf03bb45 [2022-11-19 07:27:23,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:27:23,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:27:23,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:23,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:27:23,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:27:23,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268e3780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23, skipping insertion in model container [2022-11-19 07:27:23,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:27:23,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:27:23,523 WARN L234 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2022-11-19 07:27:23,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:23,560 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:27:23,602 WARN L234 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2022-11-19 07:27:23,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:23,620 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:27:23,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23 WrapperNode [2022-11-19 07:27:23,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:23,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:23,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:27:23,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:27:23,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,672 INFO L138 Inliner]: procedures = 22, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2022-11-19 07:27:23,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:23,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:27:23,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:27:23,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:27:23,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:27:23,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:27:23,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:27:23,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:27:23,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (1/1) ... [2022-11-19 07:27:23,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:23,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:23,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:27:23,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:27:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:27:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-19 07:27:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:27:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:27:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-19 07:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 07:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:27:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-19 07:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:27:23,976 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:27:23,978 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:27:36,125 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:27:36,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:27:36,131 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 07:27:36,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:36 BoogieIcfgContainer [2022-11-19 07:27:36,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:27:36,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:27:36,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:27:36,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:27:36,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:23" (1/3) ... [2022-11-19 07:27:36,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103a1594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:36, skipping insertion in model container [2022-11-19 07:27:36,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:23" (2/3) ... [2022-11-19 07:27:36,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103a1594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:36, skipping insertion in model container [2022-11-19 07:27:36,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:36" (3/3) ... [2022-11-19 07:27:36,143 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2022-11-19 07:27:36,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:27:36,163 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:27:36,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:27:36,218 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;@51bedeb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:27:36,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:27:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:27:36,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:36,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:36,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:36,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:36,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1030213693, now seen corresponding path program 1 times [2022-11-19 07:27:36,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:27:36,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011789194] [2022-11-19 07:27:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:36,251 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 [2022-11-19 07:27:36,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:27:36,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:27:36,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:27:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:37,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:27:37,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:27:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:37,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:27:37,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:27:37,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011789194] [2022-11-19 07:27:37,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011789194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:37,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:37,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:27:37,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446081423] [2022-11-19 07:27:37,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:27:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:27:37,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:27:37,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:27:37,255 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:37,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:37,284 INFO L93 Difference]: Finished difference Result 68 states and 106 transitions. [2022-11-19 07:27:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:27:37,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:27:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:37,295 INFO L225 Difference]: With dead ends: 68 [2022-11-19 07:27:37,295 INFO L226 Difference]: Without dead ends: 32 [2022-11-19 07:27:37,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:27:37,307 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:37,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:27:37,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-19 07:27:37,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-19 07:27:37,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:37,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2022-11-19 07:27:37,354 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 10 [2022-11-19 07:27:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:37,355 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2022-11-19 07:27:37,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-11-19 07:27:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:27:37,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:37,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:37,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 0 [2022-11-19 07:27:37,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:27:37,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:37,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:37,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1305093504, now seen corresponding path program 1 times [2022-11-19 07:27:37,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:27:37,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051312325] [2022-11-19 07:27:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:37,575 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 [2022-11-19 07:27:37,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:27:37,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:27:37,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (3)] Waiting until timeout for monitored process [2022-11-19 07:27:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:38,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 07:27:38,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:27:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:38,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:27:38,935 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:27:38,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051312325] [2022-11-19 07:27:38,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051312325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:38,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:38,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:27:38,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707611950] [2022-11-19 07:27:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:38,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:27:38,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:27:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:27:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:27:38,939 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:41,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:44,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:46,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:47,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:49,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:52,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:54,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:54,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:54,599 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-19 07:27:54,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:27:54,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:27:54,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:54,645 INFO L225 Difference]: With dead ends: 41 [2022-11-19 07:27:54,645 INFO L226 Difference]: Without dead ends: 30 [2022-11-19 07:27:54,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:27:54,647 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 4 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:54,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 109 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 6 Unknown, 13 Unchecked, 15.4s Time] [2022-11-19 07:27:54,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-19 07:27:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-19 07:27:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-11-19 07:27:54,654 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 11 [2022-11-19 07:27:54,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:54,654 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-11-19 07:27:54,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:54,654 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-11-19 07:27:54,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 07:27:54,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:54,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:54,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:27:54,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:27:54,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:54,857 INFO L85 PathProgramCache]: Analyzing trace with hash -414091197, now seen corresponding path program 1 times [2022-11-19 07:27:54,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:27:54,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909769155] [2022-11-19 07:27:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:54,859 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 [2022-11-19 07:27:54,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:27:54,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:27:54,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (4)] Waiting until timeout for monitored process [2022-11-19 07:27:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:55,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:27:55,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:27:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:56,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:27:56,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:27:56,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909769155] [2022-11-19 07:27:56,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909769155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:56,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:56,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:27:56,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289740042] [2022-11-19 07:27:56,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:56,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:27:56,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:27:56,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:27:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:27:56,260 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:59,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:01,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:03,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:05,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:07,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:09,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:12,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:14,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:14,998 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2022-11-19 07:28:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:28:14,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 07:28:14,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:15,000 INFO L225 Difference]: With dead ends: 43 [2022-11-19 07:28:15,000 INFO L226 Difference]: Without dead ends: 40 [2022-11-19 07:28:15,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:28:15,002 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 33 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:15,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 96 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 7 Unknown, 0 Unchecked, 18.5s Time] [2022-11-19 07:28:15,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-19 07:28:15,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2022-11-19 07:28:15,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-11-19 07:28:15,010 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 13 [2022-11-19 07:28:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:15,011 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-19 07:28:15,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-11-19 07:28:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:28:15,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:15,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:15,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:15,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:28:15,223 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:15,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1613706055, now seen corresponding path program 1 times [2022-11-19 07:28:15,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:28:15,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141939272] [2022-11-19 07:28:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:15,225 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 [2022-11-19 07:28:15,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:28:15,226 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:28:15,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (5)] Waiting until timeout for monitored process [2022-11-19 07:28:16,127 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (5)] Exception during sending of exit command (exit): Broken pipe [2022-11-19 07:28:16,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (5)] Ended with exit code 139 [2022-11-19 07:28:16,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:28:16,328 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (5) 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:336) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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 [2022-11-19 07:28:16,331 INFO L158 Benchmark]: Toolchain (without parser) took 53134.05ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 43.3MB in the beginning and 57.3MB in the end (delta: -14.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-11-19 07:28:16,331 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 51.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:28:16,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.92ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.3MB in the end (delta: -131.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:28:16,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.91ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 40.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:28:16,333 INFO L158 Benchmark]: Boogie Preprocessor took 89.21ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 38.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:28:16,333 INFO L158 Benchmark]: RCFGBuilder took 12369.94ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 38.3MB in the beginning and 60.7MB in the end (delta: -22.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-19 07:28:16,333 INFO L158 Benchmark]: TraceAbstraction took 40194.58ms. Allocated memory is still 88.1MB. Free memory was 60.3MB in the beginning and 57.3MB in the end (delta: 3.0MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-11-19 07:28:16,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 51.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.92ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.3MB in the end (delta: -131.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.91ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 40.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.21ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 38.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 12369.94ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 38.3MB in the beginning and 60.7MB in the end (delta: -22.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 40194.58ms. Allocated memory is still 88.1MB. Free memory was 60.3MB in the beginning and 57.3MB in the end (delta: 3.0MB). Peak memory consumption was 1.3MB. 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (5) 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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (5) 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. [2022-11-19 07:28:16,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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_219c0ed7-43b7-46c9-9276-f794e6f4da44/bin/utaipan-I9t0OCRTmS/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 (5) with exit command (exit)) Received EOF on stdin. No stderr output.