./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i --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_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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_0c175da5-fdda-437f-b6ef-34389ea6e586/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 aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- 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 06:42:16,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:42:16,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:42:16,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:42:16,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:42:16,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:42:16,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:42:16,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:42:16,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:42:16,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:42:16,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:42:16,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:42:16,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:42:16,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:42:16,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:42:16,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:42:16,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:42:16,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:42:16,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:42:16,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:42:16,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:42:16,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:42:16,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:42:16,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:42:16,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:42:16,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:42:16,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:42:16,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:42:16,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:42:16,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:42:16,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:42:16,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:42:16,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:42:16,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:42:16,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:42:16,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:42:16,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:42:16,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:42:16,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:42:16,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:42:16,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:42:16,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:42:16,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:42:16,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:42:16,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:42:16,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:42:16,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:42:16,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:42:16,437 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:42:16,437 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:42:16,437 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:42:16,437 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:42:16,439 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:42:16,439 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:42:16,439 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:42:16,439 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:42:16,440 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:42:16,440 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:42:16,440 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:42:16,440 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:42:16,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:42:16,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:42:16,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:42:16,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:42:16,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:42:16,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:42:16,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:42:16,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:42:16,445 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:42:16,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:42:16,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:42:16,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:42:16,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:42:16,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:42:16,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:42:16,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:42:16,447 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:42:16,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:42:16,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:42:16,448 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:42:16,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:42:16,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:42:16,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:42:16,449 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_0c175da5-fdda-437f-b6ef-34389ea6e586/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2022-11-19 06:42:16,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:42:16,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:42:16,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:42:16,776 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:42:16,777 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:42:16,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-11-19 06:42:16,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/c8bbcd327/3663282c78f44745802719c7bae96a59/FLAGbb3707f7e [2022-11-19 06:42:17,477 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:42:17,478 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-11-19 06:42:17,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/c8bbcd327/3663282c78f44745802719c7bae96a59/FLAGbb3707f7e [2022-11-19 06:42:17,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/c8bbcd327/3663282c78f44745802719c7bae96a59 [2022-11-19 06:42:17,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:42:17,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:42:17,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:42:17,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:42:17,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:42:17,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:42:17" (1/1) ... [2022-11-19 06:42:17,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63eb03ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:17, skipping insertion in model container [2022-11-19 06:42:17,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:42:17" (1/1) ... [2022-11-19 06:42:17,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:42:17,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:42:18,092 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_0c175da5-fdda-437f-b6ef-34389ea6e586/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-11-19 06:42:18,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:42:18,105 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:42:18,122 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_0c175da5-fdda-437f-b6ef-34389ea6e586/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-11-19 06:42:18,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:42:18,134 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:42:18,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18 WrapperNode [2022-11-19 06:42:18,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:42:18,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:42:18,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:42:18,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:42:18,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,170 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-19 06:42:18,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:42:18,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:42:18,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:42:18,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:42:18,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:42:18,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:42:18,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:42:18,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:42:18,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (1/1) ... [2022-11-19 06:42:18,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:42:18,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:42:18,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:42:18,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:42:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:42:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-19 06:42:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-19 06:42:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-19 06:42:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-19 06:42:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:42:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:42:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:42:18,387 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:42:18,391 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:42:18,567 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:42:18,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:42:18,628 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:42:18,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:42:18 BoogieIcfgContainer [2022-11-19 06:42:18,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:42:18,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:42:18,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:42:18,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:42:18,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:42:17" (1/3) ... [2022-11-19 06:42:18,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1949fda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:42:18, skipping insertion in model container [2022-11-19 06:42:18,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:18" (2/3) ... [2022-11-19 06:42:18,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1949fda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:42:18, skipping insertion in model container [2022-11-19 06:42:18,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:42:18" (3/3) ... [2022-11-19 06:42:18,656 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2022-11-19 06:42:18,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:42:18,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:42:18,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:42:18,734 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;@2c2a3888, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:42:18,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:42:18,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:42:18,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:42:18,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:18,749 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:42:18,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:42:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:18,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1117148870, now seen corresponding path program 1 times [2022-11-19 06:42:18,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:42:18,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637556769] [2022-11-19 06:42:18,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:18,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:42:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:42:18,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:42:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:42:19,063 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:42:19,065 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:42:19,067 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:42:19,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:42:19,077 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:42:19,083 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:42:19,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:42:19 BoogieIcfgContainer [2022-11-19 06:42:19,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:42:19,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:42:19,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:42:19,125 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:42:19,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:42:18" (3/4) ... [2022-11-19 06:42:19,129 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:42:19,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:42:19,131 INFO L158 Benchmark]: Toolchain (without parser) took 1286.18ms. Allocated memory is still 125.8MB. Free memory was 92.4MB in the beginning and 71.6MB in the end (delta: 20.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-19 06:42:19,132 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:42:19,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.99ms. Allocated memory is still 125.8MB. Free memory was 92.1MB in the beginning and 101.0MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:42:19,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.66ms. Allocated memory is still 125.8MB. Free memory was 101.0MB in the beginning and 99.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:42:19,135 INFO L158 Benchmark]: Boogie Preprocessor took 21.53ms. Allocated memory is still 125.8MB. Free memory was 99.4MB in the beginning and 98.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:42:19,140 INFO L158 Benchmark]: RCFGBuilder took 452.42ms. Allocated memory is still 125.8MB. Free memory was 98.3MB in the beginning and 87.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:42:19,141 INFO L158 Benchmark]: TraceAbstraction took 473.34ms. Allocated memory is still 125.8MB. Free memory was 86.9MB in the beginning and 71.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 06:42:19,142 INFO L158 Benchmark]: Witness Printer took 5.90ms. Allocated memory is still 125.8MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 130.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:42:19,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.99ms. Allocated memory is still 125.8MB. Free memory was 92.1MB in the beginning and 101.0MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.66ms. Allocated memory is still 125.8MB. Free memory was 101.0MB in the beginning and 99.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.53ms. Allocated memory is still 125.8MB. Free memory was 99.4MB in the beginning and 98.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 452.42ms. Allocated memory is still 125.8MB. Free memory was 98.3MB in the beginning and 87.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 473.34ms. Allocated memory is still 125.8MB. Free memory was 86.9MB in the beginning and 71.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.90ms. Allocated memory is still 125.8MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 130.9kB). 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: 51]: 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 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=55] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L42] RET, EXPR f(IN) VAL [f(IN)=56, IN=55] [L42] CALL, EXPR fp(IN) VAL [\old(x)=55] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L42] RET, EXPR fp(IN) VAL [f(IN)=56, fp(IN)=59, IN=55] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=60] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L44] RET, EXPR f(x) VAL [f(x)=53, IN=55, x=60] [L44] CALL, EXPR fp(x) VAL [\old(x)=60] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L44] RET, EXPR fp(x) VAL [f(x)=53, fp(x)=61, IN=55, x=60] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L46] RET, EXPR f(x) VAL [f(x)=58, IN=55, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L46] RET, EXPR fp(x) VAL [f(x)=58, fp(x)=57, IN=55, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=55] [L51] reach_error() VAL [IN=55] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 06:42:19,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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_0c175da5-fdda-437f-b6ef-34389ea6e586/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 aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- 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 06:42:21,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:42:21,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:42:21,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:42:21,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:42:21,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:42:21,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:42:21,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:42:21,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:42:21,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:42:21,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:42:21,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:42:21,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:42:21,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:42:21,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:42:21,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:42:21,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:42:21,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:42:21,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:42:21,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:42:21,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:42:21,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:42:21,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:42:21,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:42:21,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:42:21,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:42:21,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:42:21,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:42:21,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:42:21,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:42:21,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:42:21,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:42:21,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:42:21,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:42:21,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:42:21,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:42:21,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:42:21,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:42:21,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:42:21,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:42:21,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:42:21,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 06:42:21,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:42:21,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:42:21,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:42:21,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:42:21,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:42:21,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:42:21,573 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:42:21,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:42:21,574 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:42:21,574 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:42:21,575 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:42:21,575 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:42:21,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:42:21,591 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:42:21,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:42:21,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:42:21,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:42:21,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:42:21,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:42:21,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:42:21,593 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:42:21,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:42:21,593 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:42:21,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:42:21,594 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:42:21,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:42:21,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:42:21,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:42:21,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:42:21,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:42:21,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:42:21,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:42:21,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:42:21,597 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:42:21,597 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:42:21,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:42:21,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:42:21,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:42:21,598 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_0c175da5-fdda-437f-b6ef-34389ea6e586/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2022-11-19 06:42:21,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:42:21,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:42:21,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:42:21,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:42:21,989 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:42:21,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-11-19 06:42:22,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/633e42f64/08e4ad7d0685448ebd63d37b253823f6/FLAG7ffbc90ca [2022-11-19 06:42:22,585 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:42:22,585 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-11-19 06:42:22,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/633e42f64/08e4ad7d0685448ebd63d37b253823f6/FLAG7ffbc90ca [2022-11-19 06:42:22,985 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/data/633e42f64/08e4ad7d0685448ebd63d37b253823f6 [2022-11-19 06:42:22,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:42:22,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:42:22,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:42:22,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:42:22,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:42:22,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:42:22" (1/1) ... [2022-11-19 06:42:23,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75072401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23, skipping insertion in model container [2022-11-19 06:42:23,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:42:22" (1/1) ... [2022-11-19 06:42:23,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:42:23,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:42:23,255 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_0c175da5-fdda-437f-b6ef-34389ea6e586/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-11-19 06:42:23,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:42:23,287 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:42:23,338 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_0c175da5-fdda-437f-b6ef-34389ea6e586/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-11-19 06:42:23,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:42:23,369 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:42:23,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23 WrapperNode [2022-11-19 06:42:23,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:42:23,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:42:23,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:42:23,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:42:23,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,419 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-19 06:42:23,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:42:23,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:42:23,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:42:23,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:42:23,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:42:23,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:42:23,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:42:23,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:42:23,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:42:23,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:42:23,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:42:23,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:42:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:42:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-19 06:42:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-19 06:42:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 06:42:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-19 06:42:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-19 06:42:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:42:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:42:23,604 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:42:23,606 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:42:34,343 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:42:34,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:42:34,351 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:42:34,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:42:34 BoogieIcfgContainer [2022-11-19 06:42:34,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:42:34,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:42:34,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:42:34,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:42:34,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:42:22" (1/3) ... [2022-11-19 06:42:34,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ace1e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:42:34, skipping insertion in model container [2022-11-19 06:42:34,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23" (2/3) ... [2022-11-19 06:42:34,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ace1e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:42:34, skipping insertion in model container [2022-11-19 06:42:34,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:42:34" (3/3) ... [2022-11-19 06:42:34,362 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2022-11-19 06:42:34,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:42:34,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:42:34,457 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:42:34,464 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;@7347d866, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:42:34,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:42:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:42:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 06:42:34,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:34,480 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:42:34,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:42:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-19 06:42:34,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:42:34,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748958484] [2022-11-19 06:42:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:34,501 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 06:42:34,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:42:34,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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 06:42:34,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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 06:42:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:42:38,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 06:42:38,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:42:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 06:42:38,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:42:38,225 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:42:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748958484] [2022-11-19 06:42:38,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748958484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:42:38,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:42:38,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:42:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416272727] [2022-11-19 06:42:38,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:42:38,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:42:38,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:42:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:42:38,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:42:38,283 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-19 06:42:38,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:42:38,305 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-19 06:42:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:42:38,307 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-11-19 06:42:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:42:38,314 INFO L225 Difference]: With dead ends: 49 [2022-11-19 06:42:38,314 INFO L226 Difference]: Without dead ends: 22 [2022-11-19 06:42:38,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 06:42:38,321 INFO L413 NwaCegarLoop]: 29 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, 29 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 06:42:38,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:42:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-19 06:42:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-19 06:42:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:42:38,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-19 06:42:38,364 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-19 06:42:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:42:38,365 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-19 06:42:38,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-19 06:42:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-19 06:42:38,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 06:42:38,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:38,368 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:42:38,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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 06:42:38,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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 06:42:38,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:42:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-19 06:42:38,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:42:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002813662] [2022-11-19 06:42:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:38,593 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 06:42:38,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:42:38,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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 06:42:38,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c175da5-fdda-437f-b6ef-34389ea6e586/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