./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:06:26,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:06:26,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:06:26,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:06:26,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:06:26,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:06:26,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:06:26,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:06:26,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:06:26,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:06:26,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:06:26,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:06:26,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:06:26,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:06:26,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:06:26,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:06:26,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:06:26,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:06:26,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:06:26,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:06:26,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:06:26,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:06:26,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:06:26,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:06:26,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:06:26,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:06:26,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:06:26,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:06:26,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:06:26,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:06:26,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:06:26,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:06:26,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:06:26,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:06:26,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:06:26,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:06:26,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:06:26,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:06:26,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:06:26,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:06:26,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:06:26,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:06:26,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:06:26,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:06:26,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:06:26,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:06:26,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:06:26,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:06:26,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:06:26,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:06:26,360 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:06:26,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:06:26,361 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:06:26,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:06:26,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:06:26,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:06:26,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:06:26,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:06:26,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:06:26,362 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:06:26,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:06:26,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:06:26,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:06:26,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:06:26,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:06:26,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:06:26,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:06:26,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:06:26,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:06:26,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:06:26,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:06:26,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:06:26,367 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:06:26,367 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:06:26,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:06:26,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:06:26,368 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_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2021-11-20 06:06:26,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:06:26,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:06:26,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:06:26,734 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:06:26,734 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:06:26,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-11-20 06:06:26,792 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/9e9accae4/a089423444bf466da7cf588a7db6e6e7/FLAG80a4427e6 [2021-11-20 06:06:27,407 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:06:27,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-11-20 06:06:27,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/9e9accae4/a089423444bf466da7cf588a7db6e6e7/FLAG80a4427e6 [2021-11-20 06:06:27,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/9e9accae4/a089423444bf466da7cf588a7db6e6e7 [2021-11-20 06:06:27,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:06:27,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:06:27,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:27,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:06:27,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:06:27,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:27" (1/1) ... [2021-11-20 06:06:27,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541517d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:27, skipping insertion in model container [2021-11-20 06:06:27,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:27" (1/1) ... [2021-11-20 06:06:27,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:06:27,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:06:28,056 WARN L230 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_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2021-11-20 06:06:28,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:28,072 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:06:28,110 WARN L230 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_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2021-11-20 06:06:28,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:28,136 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:06:28,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28 WrapperNode [2021-11-20 06:06:28,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:28,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:28,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:06:28,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:06:28,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,181 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2021-11-20 06:06:28,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:28,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:06:28,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:06:28,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:06:28,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:06:28,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:06:28,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:06:28,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:06:28,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (1/1) ... [2021-11-20 06:06:28,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:06:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:28,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:28,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:06:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:06:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-20 06:06:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-20 06:06:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-20 06:06:28,332 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-20 06:06:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:06:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:06:28,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:06:28,416 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:06:28,418 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:06:28,578 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:06:28,584 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:06:28,585 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:06:28,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:28 BoogieIcfgContainer [2021-11-20 06:06:28,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:06:28,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:06:28,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:06:28,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:06:28,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:06:27" (1/3) ... [2021-11-20 06:06:28,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4529eea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:06:28, skipping insertion in model container [2021-11-20 06:06:28,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:28" (2/3) ... [2021-11-20 06:06:28,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4529eea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:06:28, skipping insertion in model container [2021-11-20 06:06:28,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:28" (3/3) ... [2021-11-20 06:06:28,597 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2021-11-20 06:06:28,603 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:06:28,603 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:06:28,661 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:06:28,669 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:06:28,670 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:06:28,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:06:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:06:28,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:28,712 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:28,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:28,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2021-11-20 06:06:28,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:28,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278191571] [2021-11-20 06:06:28,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:28,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:28,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:06:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:06:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:28,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:06:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:28,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 06:06:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 06:06:28,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:06:28,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278191571] [2021-11-20 06:06:29,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278191571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:29,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:29,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:06:29,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992587412] [2021-11-20 06:06:29,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:29,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:06:29,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:06:29,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:06:29,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:06:29,052 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:06:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:29,074 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2021-11-20 06:06:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:06:29,076 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2021-11-20 06:06:29,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:06:29,085 INFO L225 Difference]: With dead ends: 43 [2021-11-20 06:06:29,085 INFO L226 Difference]: Without dead ends: 19 [2021-11-20 06:06:29,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:06:29,093 INFO L933 BasicCegarLoop]: 24 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, 24 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 [2021-11-20 06:06:29,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:06:29,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-20 06:06:29,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-20 06:06:29,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:06:29,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-20 06:06:29,137 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2021-11-20 06:06:29,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:06:29,138 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-20 06:06:29,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:06:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-20 06:06:29,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:06:29,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:29,141 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:29,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:06:29,142 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:29,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2021-11-20 06:06:29,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860979760] [2021-11-20 06:06:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:29,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:29,189 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:29,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:29,250 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:06:29,252 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:06:29,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:06:29,259 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 06:06:29,263 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:06:29,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:06:29 BoogieIcfgContainer [2021-11-20 06:06:29,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:06:29,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:06:29,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:06:29,296 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:06:29,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:28" (3/4) ... [2021-11-20 06:06:29,301 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:06:29,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:06:29,302 INFO L158 Benchmark]: Toolchain (without parser) took 1565.20ms. Allocated memory is still 104.9MB. Free memory was 64.3MB in the beginning and 42.9MB in the end (delta: 21.4MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-11-20 06:06:29,303 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 80.8MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:06:29,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.53ms. Allocated memory is still 104.9MB. Free memory was 64.1MB in the beginning and 80.2MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:06:29,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.73ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 79.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:06:29,305 INFO L158 Benchmark]: Boogie Preprocessor took 42.97ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 78.1MB in the end (delta: 922.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:06:29,306 INFO L158 Benchmark]: RCFGBuilder took 360.18ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 68.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:06:29,306 INFO L158 Benchmark]: TraceAbstraction took 706.03ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 42.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-20 06:06:29,307 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 104.9MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:06:29,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 80.8MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.53ms. Allocated memory is still 104.9MB. Free memory was 64.1MB in the beginning and 80.2MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.73ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 79.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.97ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 78.1MB in the end (delta: 922.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 360.18ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 68.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 706.03ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 42.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 104.9MB. Free memory is still 42.9MB. 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 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=49] [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)=49, x=49] [L42] RET, EXPR f(IN) VAL [f(IN)=50, IN=49] [L42] CALL, EXPR fp(IN) VAL [\old(x)=49] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) VAL [f(IN)=50, fp(IN)=53, IN=49] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=51] [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)=51, x=51] [L44] RET, EXPR f(x) VAL [f(x)=52, IN=49, x=51] [L44] CALL, EXPR fp(x) VAL [\old(x)=51] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=51, x=51] [L44] RET, EXPR fp(x) VAL [f(x)=52, fp(x)=54, IN=49, x=51] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 06:06:29,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:06:32,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:06:32,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:06:32,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:06:32,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:06:32,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:06:32,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:06:32,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:06:32,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:06:32,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:06:32,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:06:32,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:06:32,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:06:32,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:06:32,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:06:32,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:06:32,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:06:32,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:06:32,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:06:32,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:06:32,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:06:32,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:06:32,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:06:32,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:06:32,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:06:32,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:06:32,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:06:32,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:06:32,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:06:32,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:06:32,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:06:32,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:06:32,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:06:32,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:06:32,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:06:32,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:06:32,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:06:32,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:06:32,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:06:32,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:06:32,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:06:32,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 06:06:32,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:06:32,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:06:32,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:06:32,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:06:32,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:06:32,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:06:32,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:06:32,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:06:32,216 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:06:32,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:06:32,217 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:06:32,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:06:32,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:06:32,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:06:32,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:06:32,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:06:32,219 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:06:32,219 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:06:32,219 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:06:32,220 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:06:32,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:06:32,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:06:32,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:06:32,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:06:32,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:06:32,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:06:32,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:06:32,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:06:32,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:06:32,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:06:32,222 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:06:32,223 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:06:32,223 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:06:32,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:06:32,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:06:32,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:06:32,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:06:32,224 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_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2021-11-20 06:06:32,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:06:32,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:06:32,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:06:32,668 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:06:32,669 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:06:32,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-11-20 06:06:32,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/b3469baef/f9dd369eedab4f319f93a44103827455/FLAG5bcde8679 [2021-11-20 06:06:33,363 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:06:33,363 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-11-20 06:06:33,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/b3469baef/f9dd369eedab4f319f93a44103827455/FLAG5bcde8679 [2021-11-20 06:06:33,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/data/b3469baef/f9dd369eedab4f319f93a44103827455 [2021-11-20 06:06:33,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:06:33,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:06:33,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:33,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:06:33,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:06:33,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:33" (1/1) ... [2021-11-20 06:06:33,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f082da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:33, skipping insertion in model container [2021-11-20 06:06:33,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:33" (1/1) ... [2021-11-20 06:06:33,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:06:33,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:06:34,021 WARN L230 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_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2021-11-20 06:06:34,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:34,046 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:06:34,122 WARN L230 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_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2021-11-20 06:06:34,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:34,147 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:06:34,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34 WrapperNode [2021-11-20 06:06:34,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:34,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:34,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:06:34,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:06:34,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,197 INFO L137 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2021-11-20 06:06:34,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:34,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:06:34,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:06:34,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:06:34,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:06:34,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:06:34,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:06:34,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:06:34,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (1/1) ... [2021-11-20 06:06:34,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:06:34,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:34,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:34,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:06:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:06:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-20 06:06:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-20 06:06:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:06:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-20 06:06:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-20 06:06:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:06:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:06:34,422 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:06:34,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:06:40,057 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:06:40,064 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:06:40,065 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:06:40,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:40 BoogieIcfgContainer [2021-11-20 06:06:40,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:06:40,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:06:40,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:06:40,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:06:40,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:06:33" (1/3) ... [2021-11-20 06:06:40,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edbe405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:06:40, skipping insertion in model container [2021-11-20 06:06:40,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:34" (2/3) ... [2021-11-20 06:06:40,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edbe405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:06:40, skipping insertion in model container [2021-11-20 06:06:40,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:40" (3/3) ... [2021-11-20 06:06:40,078 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2021-11-20 06:06:40,085 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:06:40,086 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:06:40,145 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:06:40,152 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:06:40,153 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:06:40,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:06:40,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:06:40,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:40,185 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:40,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:40,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2021-11-20 06:06:40,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:06:40,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966005768] [2021-11-20 06:06:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:40,210 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:06:40,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:06:40,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:06:40,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:06:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:43,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 06:06:43,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 06:06:43,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:06:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 06:06:43,512 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:06:43,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966005768] [2021-11-20 06:06:43,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966005768] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:43,513 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:43,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 06:06:43,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450656849] [2021-11-20 06:06:43,516 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:43,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:06:43,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:06:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:06:43,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:06:43,559 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:06:43,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:43,588 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2021-11-20 06:06:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:06:43,590 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 24 [2021-11-20 06:06:43,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:06:43,599 INFO L225 Difference]: With dead ends: 43 [2021-11-20 06:06:43,600 INFO L226 Difference]: Without dead ends: 19 [2021-11-20 06:06:43,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:06:43,611 INFO L933 BasicCegarLoop]: 24 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, 24 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 [2021-11-20 06:06:43,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:06:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-20 06:06:43,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-20 06:06:43,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:06:43,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-20 06:06:43,668 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2021-11-20 06:06:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:06:43,668 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-20 06:06:43,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:06:43,669 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-20 06:06:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:06:43,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:43,671 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:43,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:43,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:06:43,872 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:43,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:43,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2021-11-20 06:06:43,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:06:43,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720945898] [2021-11-20 06:06:43,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:43,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:06:43,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:06:43,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:06:43,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:07:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:16,112 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:23,345 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-20 06:07:23,345 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:07:23,347 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:07:23,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:23,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:07:23,552 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 06:07:23,555 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:07:23,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:07:23 BoogieIcfgContainer [2021-11-20 06:07:23,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:07:23,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:07:23,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:07:23,596 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:07:23,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:40" (3/4) ... [2021-11-20 06:07:23,598 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 06:07:23,653 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:07:23,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:07:23,654 INFO L158 Benchmark]: Toolchain (without parser) took 49934.96ms. Allocated memory was 52.4MB in the beginning and 75.5MB in the end (delta: 23.1MB). Free memory was 29.0MB in the beginning and 47.2MB in the end (delta: -18.2MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-11-20 06:07:23,655 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 52.4MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:07:23,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.95ms. Allocated memory was 52.4MB in the beginning and 75.5MB in the end (delta: 23.1MB). Free memory was 28.8MB in the beginning and 57.9MB in the end (delta: -29.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-11-20 06:07:23,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.99ms. Allocated memory is still 75.5MB. Free memory was 57.7MB in the beginning and 56.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:07:23,656 INFO L158 Benchmark]: Boogie Preprocessor took 55.76ms. Allocated memory is still 75.5MB. Free memory was 56.3MB in the beginning and 55.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:07:23,657 INFO L158 Benchmark]: RCFGBuilder took 5812.76ms. Allocated memory is still 75.5MB. Free memory was 55.1MB in the beginning and 46.3MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:07:23,658 INFO L158 Benchmark]: TraceAbstraction took 43525.64ms. Allocated memory is still 75.5MB. Free memory was 45.7MB in the beginning and 49.3MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:07:23,658 INFO L158 Benchmark]: Witness Printer took 57.30ms. Allocated memory is still 75.5MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:07:23,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 52.4MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.95ms. Allocated memory was 52.4MB in the beginning and 75.5MB in the end (delta: 23.1MB). Free memory was 28.8MB in the beginning and 57.9MB in the end (delta: -29.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.99ms. Allocated memory is still 75.5MB. Free memory was 57.7MB in the beginning and 56.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.76ms. Allocated memory is still 75.5MB. Free memory was 56.3MB in the beginning and 55.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5812.76ms. Allocated memory is still 75.5MB. Free memory was 55.1MB in the beginning and 46.3MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 43525.64ms. Allocated memory is still 75.5MB. Free memory was 45.7MB in the beginning and 49.3MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.30ms. Allocated memory is still 75.5MB. Free memory was 49.3MB in the beginning and 47.2MB 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 > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=-1.3156410455703735] [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)=-1.3156410455703735, \result=-0.970299482345581, x=-1.3156410455703735] [L42] RET, EXPR f(IN) VAL [f(IN)=-0.970299482345581, IN=-1.3156410455703735] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.3156410455703735] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.3156410455703735, \result=0.26658257842063904, x=-1.3156410455703735] [L42] RET, EXPR fp(IN) VAL [f(IN)=-0.970299482345581, fp(IN)=0.26658257842063904, IN=-1.3156410455703735] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=2.324129581451416] [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)=2.324129581451416, \result=0.869571328163147, x=2.324129581451416] [L44] RET, EXPR f(x) VAL [f(x)=0.869571328163147, IN=-1.3156410455703735, x=2.324129581451416] [L44] CALL, EXPR fp(x) VAL [\old(x)=2.324129581451416] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2.324129581451416, \result=-0.26618698239326477, x=2.324129581451416] [L44] RET, EXPR fp(x) VAL [f(x)=0.869571328163147, fp(x)=-0.26618698239326477, IN=-1.3156410455703735, x=2.324129581451416] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=-1.3156410455703735, x=5.590898513793945] [L51] reach_error() VAL [IN=-1.3156410455703735, x=5.590898513793945] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 34.9s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 12/12 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! [2021-11-20 06:07:23,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab65b7d-e2f0-4a7d-a253-59e416f7c4bd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE