./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R --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 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:44:13,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:44:13,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:44:13,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:44:13,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:44:13,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:44:13,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:44:13,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:44:13,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:44:13,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:44:13,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:44:13,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:44:13,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:44:13,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:44:13,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:44:13,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:44:13,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:44:13,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:44:13,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:44:13,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:44:13,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:44:13,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:44:13,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:44:13,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:44:13,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:44:13,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:44:13,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:44:13,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:44:13,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:44:13,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:44:13,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:44:13,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:44:13,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:44:13,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:44:13,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:44:13,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:44:13,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:44:13,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:44:13,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:44:13,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:44:13,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:44:13,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:44:13,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:44:13,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:44:13,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:44:13,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:44:13,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:44:13,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:44:13,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:44:13,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:44:13,328 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:44:13,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:44:13,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:44:13,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:44:13,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:44:13,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:44:13,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:44:13,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:44:13,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:44:13,331 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:44:13,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:44:13,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:44:13,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:44:13,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:44:13,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:44:13,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:44:13,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:44:13,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:44:13,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:44:13,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:44:13,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:44:13,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:44:13,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:44:13,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:44:13,335 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:44:13,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:44:13,335 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf [2022-11-25 16:44:13,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:44:13,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:44:13,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:44:13,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:44:13,594 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:44:13,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2022-11-25 16:44:16,690 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:44:16,956 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:44:16,957 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2022-11-25 16:44:16,963 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data/a8b5372f1/9ba3c4bb600547318ded356fb52e4004/FLAG1f10bcdc0 [2022-11-25 16:44:16,977 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data/a8b5372f1/9ba3c4bb600547318ded356fb52e4004 [2022-11-25 16:44:16,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:44:16,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:44:16,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:44:16,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:44:16,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:44:16,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:44:16" (1/1) ... [2022-11-25 16:44:16,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b208705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:16, skipping insertion in model container [2022-11-25 16:44:16,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:44:16" (1/1) ... [2022-11-25 16:44:16,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:44:17,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:44:17,169 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2022-11-25 16:44:17,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:44:17,184 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:44:17,204 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2022-11-25 16:44:17,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:44:17,219 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:44:17,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17 WrapperNode [2022-11-25 16:44:17,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:44:17,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:44:17,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:44:17,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:44:17,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,255 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-25 16:44:17,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:44:17,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:44:17,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:44:17,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:44:17,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:44:17,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:44:17,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:44:17,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:44:17,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (1/1) ... [2022-11-25 16:44:17,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:44:17,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:44:17,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:44:17,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:44:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:44:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-25 16:44:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-25 16:44:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-25 16:44:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-25 16:44:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:44:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:44:17,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:44:17,469 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:44:17,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:44:17,570 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:44:17,577 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:44:17,578 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:44:17,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:17 BoogieIcfgContainer [2022-11-25 16:44:17,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:44:17,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:44:17,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:44:17,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:44:17,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:44:16" (1/3) ... [2022-11-25 16:44:17,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245f8c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:44:17, skipping insertion in model container [2022-11-25 16:44:17,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:17" (2/3) ... [2022-11-25 16:44:17,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245f8c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:44:17, skipping insertion in model container [2022-11-25 16:44:17,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:17" (3/3) ... [2022-11-25 16:44:17,589 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_3.i [2022-11-25 16:44:17,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:44:17,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:44:17,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:44:17,676 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@482fa756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:44:17,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:44:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:44:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 16:44:17,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:17,690 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:44:17,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:44:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-25 16:44:17,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:17,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940337560] [2022-11-25 16:44:17,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:17,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 16:44:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:17,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 16:44:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:17,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 16:44:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:17,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 16:44:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 16:44:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 16:44:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 16:44:17,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:17,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940337560] [2022-11-25 16:44:17,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940337560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:17,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:17,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:44:17,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895179172] [2022-11-25 16:44:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:17,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:44:17,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:17,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:44:17,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:44:17,940 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 16:44:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:17,970 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-25 16:44:17,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:44:17,972 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-11-25 16:44:17,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:17,980 INFO L225 Difference]: With dead ends: 49 [2022-11-25 16:44:17,981 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 16:44:17,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:44:17,991 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:17,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:44:18,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 16:44:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 16:44:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:44:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-25 16:44:18,043 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-25 16:44:18,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:18,045 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-25 16:44:18,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 16:44:18,046 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-25 16:44:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 16:44:18,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:18,050 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:44:18,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:44:18,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:44:18,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:18,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-25 16:44:18,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055340814] [2022-11-25 16:44:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:18,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:44:18,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:44:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:44:18,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:44:18,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:44:18,143 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 16:44:18,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:44:18,149 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 16:44:18,152 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:44:18,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:44:18 BoogieIcfgContainer [2022-11-25 16:44:18,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:44:18,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:44:18,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:44:18,181 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:44:18,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:17" (3/4) ... [2022-11-25 16:44:18,184 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:44:18,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:44:18,185 INFO L158 Benchmark]: Toolchain (without parser) took 1204.14ms. Allocated memory is still 222.3MB. Free memory was 188.4MB in the beginning and 134.1MB in the end (delta: 54.3MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-25 16:44:18,186 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:44:18,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.60ms. Allocated memory is still 222.3MB. Free memory was 187.8MB in the beginning and 177.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 16:44:18,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.02ms. Allocated memory is still 222.3MB. Free memory was 177.5MB in the beginning and 176.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:44:18,187 INFO L158 Benchmark]: Boogie Preprocessor took 39.63ms. Allocated memory is still 222.3MB. Free memory was 176.0MB in the beginning and 175.1MB in the end (delta: 909.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:44:18,188 INFO L158 Benchmark]: RCFGBuilder took 274.52ms. Allocated memory is still 222.3MB. Free memory was 175.1MB in the beginning and 164.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 16:44:18,189 INFO L158 Benchmark]: TraceAbstraction took 597.22ms. Allocated memory is still 222.3MB. Free memory was 164.0MB in the beginning and 134.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 16:44:18,189 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 222.3MB. Free memory was 134.7MB in the beginning and 134.1MB in the end (delta: 592.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:44:18,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.60ms. Allocated memory is still 222.3MB. Free memory was 187.8MB in the beginning and 177.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.02ms. Allocated memory is still 222.3MB. Free memory was 177.5MB in the beginning and 176.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.63ms. Allocated memory is still 222.3MB. Free memory was 176.0MB in the beginning and 175.1MB in the end (delta: 909.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.52ms. Allocated memory is still 222.3MB. Free memory was 175.1MB in the beginning and 164.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 597.22ms. Allocated memory is still 222.3MB. Free memory was 164.0MB in the beginning and 134.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 222.3MB. Free memory was 134.7MB in the beginning and 134.1MB in the end (delta: 592.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L42] CALL, EXPR f(IN) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54, x=54] [L42] RET, EXPR f(IN) VAL [f(IN)=55, IN=54] [L42] CALL, EXPR fp(IN) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54, x=54] [L42] RET, EXPR fp(IN) VAL [f(IN)=55, fp(IN)=59, IN=54] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=56] [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)=56, x=56] [L44] RET, EXPR f(x) VAL [f(x)=57, IN=54, x=56] [L44] CALL, EXPR fp(x) VAL [\old(x)=56] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=56, x=56] [L44] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=60, IN=54, x=56] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=58] [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)=58, x=58] [L46] RET, EXPR f(x) VAL [f(x)=61, IN=54, x=58] [L46] CALL, EXPR fp(x) VAL [\old(x)=58] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=58, x=58] [L46] RET, EXPR fp(x) VAL [f(x)=61, fp(x)=53, IN=54, x=58] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=54] [L51] reach_error() VAL [IN=54] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 16:44:18,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R --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 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:44:20,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:44:20,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:44:20,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:44:20,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:44:20,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:44:20,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:44:20,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:44:20,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:44:20,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:44:20,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:44:20,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:44:20,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:44:20,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:44:20,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:44:20,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:44:20,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:44:20,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:44:20,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:44:20,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:44:20,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:44:20,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:44:20,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:44:20,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:44:20,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:44:20,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:44:20,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:44:20,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:44:20,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:44:20,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:44:20,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:44:20,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:44:20,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:44:20,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:44:20,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:44:20,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:44:20,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:44:20,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:44:20,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:44:20,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:44:20,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:44:20,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-25 16:44:20,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:44:20,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:44:20,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:44:20,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:44:20,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:44:20,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:44:20,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:44:20,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:44:20,826 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:44:20,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:44:20,827 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:44:20,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:44:20,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:44:20,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:44:20,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:44:20,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:44:20,829 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:44:20,829 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 16:44:20,829 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 16:44:20,829 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:44:20,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:44:20,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:44:20,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:44:20,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:44:20,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:44:20,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:44:20,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:44:20,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:44:20,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:44:20,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:44:20,832 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 16:44:20,832 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 16:44:20,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:44:20,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:44:20,833 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:44:20,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:44:20,834 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 16:44:20,834 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf [2022-11-25 16:44:21,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:44:21,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:44:21,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:44:21,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:44:21,273 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:44:21,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2022-11-25 16:44:24,408 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:44:24,636 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:44:24,637 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2022-11-25 16:44:24,644 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data/25f1fac7f/f3b6ac93a5cf4b1fba6c24725961522b/FLAG784a850e9 [2022-11-25 16:44:24,659 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/data/25f1fac7f/f3b6ac93a5cf4b1fba6c24725961522b [2022-11-25 16:44:24,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:44:24,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:44:24,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:44:24,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:44:24,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:44:24,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:24,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788d34a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24, skipping insertion in model container [2022-11-25 16:44:24,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:24,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:44:24,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:44:24,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2022-11-25 16:44:24,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:44:24,889 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:44:24,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2022-11-25 16:44:24,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:44:24,925 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:44:24,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24 WrapperNode [2022-11-25 16:44:24,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:44:24,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:44:24,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:44:24,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:44:24,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:24,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:24,969 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-25 16:44:24,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:44:24,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:44:24,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:44:24,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:44:24,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:24,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:24,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:24,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:25,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:25,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:25,015 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:25,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:25,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:44:25,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:44:25,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:44:25,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:44:25,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (1/1) ... [2022-11-25 16:44:25,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:44:25,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:44:25,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:44:25,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:44:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:44:25,120 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-25 16:44:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-25 16:44:25,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 16:44:25,121 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-25 16:44:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-25 16:44:25,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:44:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:44:25,216 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:44:25,218 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:44:34,480 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:44:34,487 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:44:34,487 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:44:34,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:34 BoogieIcfgContainer [2022-11-25 16:44:34,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:44:34,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:44:34,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:44:34,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:44:34,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:44:24" (1/3) ... [2022-11-25 16:44:34,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc52b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:44:34, skipping insertion in model container [2022-11-25 16:44:34,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:24" (2/3) ... [2022-11-25 16:44:34,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc52b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:44:34, skipping insertion in model container [2022-11-25 16:44:34,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:34" (3/3) ... [2022-11-25 16:44:34,499 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_3.i [2022-11-25 16:44:34,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:44:34,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:44:34,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:44:34,610 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@642820d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:44:34,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:44:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:44:34,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 16:44:34,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:34,629 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:44:34,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:44:34,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:34,639 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-25 16:44:34,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:44:34,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062168243] [2022-11-25 16:44:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:34,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:44:34,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:44:34,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:44:34,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 16:44:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:38,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 16:44:38,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:44:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 16:44:38,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:44:38,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:44:38,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062168243] [2022-11-25 16:44:38,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062168243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:38,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:38,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:44:38,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920464147] [2022-11-25 16:44:38,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:38,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:44:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:44:38,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:44:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:44:38,361 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 16:44:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:38,383 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-25 16:44:38,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:44:38,385 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-11-25 16:44:38,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:38,392 INFO L225 Difference]: With dead ends: 49 [2022-11-25 16:44:38,392 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 16:44:38,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:44:38,399 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:38,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:44:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 16:44:38,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 16:44:38,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:44:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-25 16:44:38,436 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-25 16:44:38,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:38,436 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-25 16:44:38,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 16:44:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-25 16:44:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 16:44:38,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:38,439 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:44:38,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 16:44:38,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:44:38,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:44:38,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:38,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-25 16:44:38,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:44:38,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263450222] [2022-11-25 16:44:38,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:38,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:44:38,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:44:38,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:44:38,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007b2980-dfdd-49a2-aa4d-8d2a11e4b456/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process