./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh --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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- 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-2329fc7 [2022-12-14 09:37:29,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:37:29,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:37:29,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:37:29,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:37:29,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:37:29,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:37:29,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:37:29,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:37:29,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:37:29,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:37:29,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:37:29,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:37:29,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:37:29,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:37:29,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:37:29,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:37:29,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:37:29,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:37:29,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:37:29,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:37:29,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:37:29,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:37:29,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:37:29,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:37:29,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:37:29,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:37:29,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:37:29,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:37:29,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:37:29,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:37:29,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:37:29,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:37:29,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:37:29,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:37:29,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:37:29,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:37:29,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:37:29,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:37:29,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:37:29,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:37:29,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:37:29,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:37:29,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:37:29,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:37:29,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:37:29,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:37:29,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:37:29,167 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:37:29,167 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:37:29,168 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:37:29,168 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:37:29,168 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:37:29,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:37:29,169 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:37:29,169 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:37:29,169 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:37:29,169 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:37:29,170 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:37:29,170 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:37:29,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:37:29,171 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:37:29,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:37:29,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:37:29,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:37:29,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:37:29,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:37:29,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:37:29,172 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:37:29,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:37:29,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:37:29,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:37:29,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:37:29,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:37:29,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:37:29,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:37:29,173 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:37:29,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:37:29,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:37:29,174 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:37:29,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:37:29,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:37:29,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:37:29,175 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_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2022-12-14 09:37:29,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:37:29,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:37:29,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:37:29,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:37:29,399 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:37:29,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-12-14 09:37:31,881 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:37:32,036 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:37:32,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-12-14 09:37:32,043 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data/89b8f8098/631d07440f664f00b818ebab23a32193/FLAGb227bffc2 [2022-12-14 09:37:32,429 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data/89b8f8098/631d07440f664f00b818ebab23a32193 [2022-12-14 09:37:32,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:37:32,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:37:32,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:37:32,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:37:32,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:37:32,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5239210a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32, skipping insertion in model container [2022-12-14 09:37:32,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:37:32,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:37:32,560 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2022-12-14 09:37:32,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:37:32,572 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:37:32,585 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2022-12-14 09:37:32,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:37:32,595 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:37:32,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32 WrapperNode [2022-12-14 09:37:32,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:37:32,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:37:32,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:37:32,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:37:32,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,619 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-12-14 09:37:32,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:37:32,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:37:32,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:37:32,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:37:32,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,632 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:37:32,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:37:32,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:37:32,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:37:32,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (1/1) ... [2022-12-14 09:37:32,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:37:32,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:37:32,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:37:32,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:37:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:37:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 09:37:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 09:37:32,695 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-14 09:37:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-14 09:37:32,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:37:32,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:37:32,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:37:32,758 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:37:32,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:37:32,830 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:37:32,852 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:37:32,852 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:37:32,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:32 BoogieIcfgContainer [2022-12-14 09:37:32,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:37:32,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:37:32,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:37:32,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:37:32,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:37:32" (1/3) ... [2022-12-14 09:37:32,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4bfb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:37:32, skipping insertion in model container [2022-12-14 09:37:32,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:32" (2/3) ... [2022-12-14 09:37:32,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4bfb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:37:32, skipping insertion in model container [2022-12-14 09:37:32,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:32" (3/3) ... [2022-12-14 09:37:32,860 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2022-12-14 09:37:32,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:37:32,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:37:32,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:37:32,914 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;@6a9a165f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:37:32,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:37:32,917 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) [2022-12-14 09:37:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:37:32,923 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:37:32,924 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] [2022-12-14 09:37:32,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:37:32,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:37:32,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1831614501, now seen corresponding path program 1 times [2022-12-14 09:37:32,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:37:32,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332397835] [2022-12-14 09:37:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:37:32,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:37:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:37:33,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:37:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:37:33,045 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:37:33,046 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:37:33,047 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 09:37:33,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:37:33,052 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 09:37:33,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:37:33,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:37:33 BoogieIcfgContainer [2022-12-14 09:37:33,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:37:33,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:37:33,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:37:33,072 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:37:33,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:32" (3/4) ... [2022-12-14 09:37:33,075 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:37:33,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:37:33,076 INFO L158 Benchmark]: Toolchain (without parser) took 644.06ms. Allocated memory is still 172.0MB. Free memory was 140.9MB in the beginning and 100.3MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-14 09:37:33,076 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory was 146.6MB in the beginning and 146.6MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:37:33,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.29ms. Allocated memory is still 172.0MB. Free memory was 140.1MB in the beginning and 129.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 09:37:33,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.05ms. Allocated memory is still 172.0MB. Free memory was 129.7MB in the beginning and 128.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:37:33,077 INFO L158 Benchmark]: Boogie Preprocessor took 13.76ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 127.6MB in the end (delta: 714.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:37:33,078 INFO L158 Benchmark]: RCFGBuilder took 220.07ms. Allocated memory is still 172.0MB. Free memory was 127.6MB in the beginning and 116.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 09:37:33,078 INFO L158 Benchmark]: TraceAbstraction took 215.96ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 101.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:37:33,079 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 172.0MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:37:33,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory was 146.6MB in the beginning and 146.6MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.29ms. Allocated memory is still 172.0MB. Free memory was 140.1MB in the beginning and 129.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.05ms. Allocated memory is still 172.0MB. Free memory was 129.7MB in the beginning and 128.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.76ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 127.6MB in the end (delta: 714.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 220.07ms. Allocated memory is still 172.0MB. Free memory was 127.6MB in the beginning and 116.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 215.96ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 101.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 172.0MB. Free memory is still 100.3MB. 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 > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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: 0.2s, 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, 0.0s 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 [2022-12-14 09:37:33,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh --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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- 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-2329fc7 [2022-12-14 09:37:34,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:37:34,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:37:34,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:37:34,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:37:34,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:37:34,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:37:34,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:37:34,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:37:34,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:37:34,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:37:34,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:37:34,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:37:34,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:37:34,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:37:34,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:37:34,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:37:34,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:37:34,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:37:34,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:37:34,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:37:34,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:37:34,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:37:34,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:37:34,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:37:34,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:37:34,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:37:34,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:37:34,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:37:34,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:37:34,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:37:34,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:37:34,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:37:34,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:37:34,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:37:34,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:37:34,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:37:34,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:37:34,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:37:34,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:37:34,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:37:34,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 09:37:34,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:37:34,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:37:34,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:37:34,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:37:34,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:37:34,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:37:34,906 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:37:34,906 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:37:34,906 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:37:34,906 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:37:34,906 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:37:34,906 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:37:34,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 09:37:34,907 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:37:34,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:37:34,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:37:34,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:37:34,909 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 09:37:34,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 09:37:34,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:37:34,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:37:34,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 09:37:34,909 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_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2022-12-14 09:37:35,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:37:35,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:37:35,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:37:35,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:37:35,148 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:37:35,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-12-14 09:37:37,708 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:37:37,867 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:37:37,867 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-12-14 09:37:37,873 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data/781e63285/858b1d05421b4562864b7bfc4f1798a3/FLAG1be446fae [2022-12-14 09:37:37,887 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/data/781e63285/858b1d05421b4562864b7bfc4f1798a3 [2022-12-14 09:37:37,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:37:37,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:37:37,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:37:37,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:37:37,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:37:37,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:37:37" (1/1) ... [2022-12-14 09:37:37,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f92e451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:37, skipping insertion in model container [2022-12-14 09:37:37,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:37:37" (1/1) ... [2022-12-14 09:37:37,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:37:37,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:37:38,075 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2022-12-14 09:37:38,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:37:38,092 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:37:38,110 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2022-12-14 09:37:38,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:37:38,124 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:37:38,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38 WrapperNode [2022-12-14 09:37:38,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:37:38,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:37:38,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:37:38,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:37:38,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,159 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-14 09:37:38,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:37:38,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:37:38,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:37:38,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:37:38,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:37:38,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:37:38,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:37:38,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:37:38,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (1/1) ... [2022-12-14 09:37:38,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:37:38,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:37:38,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:37:38,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:37:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:37:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 09:37:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 09:37:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 09:37:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-14 09:37:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-14 09:37:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:37:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:37:38,306 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:37:38,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:37:47,414 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:37:47,419 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:37:47,419 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:37:47,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:47 BoogieIcfgContainer [2022-12-14 09:37:47,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:37:47,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:37:47,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:37:47,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:37:47,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:37:37" (1/3) ... [2022-12-14 09:37:47,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7fbfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:37:47, skipping insertion in model container [2022-12-14 09:37:47,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:38" (2/3) ... [2022-12-14 09:37:47,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7fbfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:37:47, skipping insertion in model container [2022-12-14 09:37:47,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:47" (3/3) ... [2022-12-14 09:37:47,427 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2022-12-14 09:37:47,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:37:47,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:37:47,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:37:47,478 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;@200b3a6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:37:47,478 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:37:47,481 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) [2022-12-14 09:37:47,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:37:47,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:37:47,487 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] [2022-12-14 09:37:47,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:37:47,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:37:47,492 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-12-14 09:37:47,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:37:47,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323462783] [2022-12-14 09:37:47,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:37:47,501 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 [2022-12-14 09:37:47,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:37:47,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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) [2022-12-14 09:37:47,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:37:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:37:50,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 09:37:50,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:37:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:37:50,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:37:50,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:37:50,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323462783] [2022-12-14 09:37:50,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323462783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:37:50,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:37:50,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:37:50,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374684521] [2022-12-14 09:37:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:37:50,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:37:50,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:37:50,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:37:50,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:37:50,643 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) [2022-12-14 09:37:50,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:37:50,666 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-12-14 09:37:50,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:37:50,668 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 [2022-12-14 09:37:50,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:37:50,672 INFO L225 Difference]: With dead ends: 49 [2022-12-14 09:37:50,673 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 09:37:50,674 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 [2022-12-14 09:37:50,677 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 [2022-12-14 09:37:50,677 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] [2022-12-14 09:37:50,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 09:37:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 09:37:50,700 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) [2022-12-14 09:37:50,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-14 09:37:50,701 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-12-14 09:37:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:37:50,702 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-14 09:37:50,702 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) [2022-12-14 09:37:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-14 09:37:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:37:50,703 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:37:50,703 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] [2022-12-14 09:37:50,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 09:37:50,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:37:50,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:37:50,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:37:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-12-14 09:37:50,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:37:50,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963940619] [2022-12-14 09:37:50,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:37:50,910 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 [2022-12-14 09:37:50,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:37:50,914 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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) [2022-12-14 09:37:50,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:39:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:39:17,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:39:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:39:32,771 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 09:39:32,771 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:39:32,772 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 09:39:32,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 09:39:32,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:39:32,984 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:39:32,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:39:33,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:39:33 BoogieIcfgContainer [2022-12-14 09:39:33,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:39:33,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:39:33,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:39:33,035 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:39:33,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:47" (3/4) ... [2022-12-14 09:39:33,037 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 09:39:33,065 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:39:33,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:39:33,066 INFO L158 Benchmark]: Toolchain (without parser) took 115175.73ms. Allocated memory is still 100.7MB. Free memory was 79.1MB in the beginning and 63.0MB in the end (delta: 16.1MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-12-14 09:39:33,066 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:39:33,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.70ms. Allocated memory is still 100.7MB. Free memory was 78.8MB in the beginning and 67.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 09:39:33,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.12ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 66.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:39:33,067 INFO L158 Benchmark]: Boogie Preprocessor took 26.34ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 64.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:39:33,067 INFO L158 Benchmark]: RCFGBuilder took 9233.93ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 54.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 09:39:33,067 INFO L158 Benchmark]: TraceAbstraction took 105612.27ms. Allocated memory is still 100.7MB. Free memory was 53.6MB in the beginning and 65.1MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:39:33,068 INFO L158 Benchmark]: Witness Printer took 30.71ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 63.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:39:33,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.70ms. Allocated memory is still 100.7MB. Free memory was 78.8MB in the beginning and 67.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.12ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 66.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.34ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 64.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 9233.93ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 54.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 105612.27ms. Allocated memory is still 100.7MB. Free memory was 53.6MB in the beginning and 65.1MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.71ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 63.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=-1.1523466110229492] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.1523466110229492, \result=-0.9147809743881226, x=-1.1523466110229492] [L42] RET, EXPR f(IN) VAL [f(IN)=-0.9147809743881226, IN=-1.1523466110229492] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.1523466110229492] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1523466110229492, \result=0.41277268528938293, x=-1.1523466110229492] [L42] RET, EXPR fp(IN) VAL [f(IN)=-0.9147809743881226, fp(IN)=0.41277268528938293, IN=-1.1523466110229492] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=1.0638391971588135] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.0638391971588135, \result=0.8748331665992737, x=1.0638391971588135] [L44] RET, EXPR f(x) VAL [f(x)=0.8748331665992737, IN=-1.1523466110229492, x=1.0638391971588135] [L44] CALL, EXPR fp(x) VAL [\old(x)=1.0638391971588135] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.0638391971588135, \result=0.48950591683387756, x=1.0638391971588135] [L44] RET, EXPR fp(x) VAL [f(x)=0.8748331665992737, fp(x)=0.48950591683387756, IN=-1.1523466110229492, x=1.0638391971588135] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=-0.7233366966247559] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.7233366966247559, \result=-0.6619305610656738, x=-0.7233366966247559] [L46] RET, EXPR f(x) VAL [f(x)=-0.6619305610656738, IN=-1.1523466110229492, x=-0.7233366966247559] [L46] CALL, EXPR fp(x) VAL [\old(x)=-0.7233366966247559] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7233366966247559, \result=0.7499974370002747, x=-0.7233366966247559] [L46] RET, EXPR fp(x) VAL [f(x)=-0.6619305610656738, fp(x)=0.7499974370002747, IN=-1.1523466110229492, x=-0.7233366966247559] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=-1.1523466110229492, x=0.15924042463302612] [L51] reach_error() VAL [IN=-1.1523466110229492, x=0.15924042463302612] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 105.5s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 89.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 proved your program to be incorrect! [2022-12-14 09:39:33,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008f01c6-2204-406e-88f3-0811a2a33043/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE