./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 --- 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-4e7fbc6 [2022-11-23 14:47:41,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:47:41,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:47:41,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:47:41,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:47:41,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:47:41,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:47:41,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:47:41,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:47:41,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:47:41,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:47:41,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:47:41,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:47:41,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:47:41,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:47:41,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:47:41,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:47:41,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:47:41,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:47:41,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:47:41,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:47:41,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:47:41,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:47:41,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:47:41,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:47:41,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:47:41,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:47:41,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:47:41,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:47:41,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:47:41,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:47:41,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:47:41,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:47:41,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:47:41,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:47:41,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:47:41,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:47:41,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:47:41,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:47:41,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:47:41,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:47:41,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:47:41,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:47:41,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:47:41,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:47:41,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:47:41,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:47:41,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:47:41,281 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:47:41,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:47:41,281 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:47:41,281 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:47:41,281 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:47:41,282 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:47:41,282 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:47:41,282 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:47:41,282 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:47:41,282 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:47:41,283 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:47:41,283 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:47:41,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:47:41,284 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:47:41,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:47:41,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:47:41,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:47:41,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:47:41,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:47:41,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:47:41,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:47:41,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:47:41,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:47:41,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:47:41,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:47:41,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:47:41,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:47:41,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:47:41,287 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:47:41,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:47:41,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:47:41,287 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:47:41,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:47:41,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:47:41,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:47:41,288 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_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 [2022-11-23 14:47:41,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:47:41,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:47:41,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:47:41,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:47:41,660 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:47:41,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-23 14:47:44,663 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:47:44,879 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:47:44,879 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-23 14:47:44,887 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data/28bfd911d/4f1ac134bec8443f91de5b0930d6ab77/FLAG7d8926648 [2022-11-23 14:47:44,909 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data/28bfd911d/4f1ac134bec8443f91de5b0930d6ab77 [2022-11-23 14:47:44,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:47:44,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:47:44,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:47:44,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:47:44,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:47:44,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:44" (1/1) ... [2022-11-23 14:47:44,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5999db43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:44, skipping insertion in model container [2022-11-23 14:47:44,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:44" (1/1) ... [2022-11-23 14:47:44,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:47:44,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:47:45,133 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_d67f3141-c985-4b7c-add7-36c6a5352ba3/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-23 14:47:45,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:47:45,152 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:47:45,174 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_d67f3141-c985-4b7c-add7-36c6a5352ba3/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-23 14:47:45,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:47:45,188 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:47:45,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45 WrapperNode [2022-11-23 14:47:45,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:47:45,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:47:45,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:47:45,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:47:45,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,250 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-11-23 14:47:45,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:47:45,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:47:45,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:47:45,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:47:45,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:47:45,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:47:45,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:47:45,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:47:45,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (1/1) ... [2022-11-23 14:47:45,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:47:45,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:45,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:47:45,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:47:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:47:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-23 14:47:45,347 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-23 14:47:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-23 14:47:45,347 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-23 14:47:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:47:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:47:45,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:47:45,410 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:47:45,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:47:45,573 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:47:45,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:47:45,632 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:47:45,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:45 BoogieIcfgContainer [2022-11-23 14:47:45,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:47:45,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:47:45,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:47:45,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:47:45,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:47:44" (1/3) ... [2022-11-23 14:47:45,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8d4b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:45, skipping insertion in model container [2022-11-23 14:47:45,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:45" (2/3) ... [2022-11-23 14:47:45,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8d4b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:45, skipping insertion in model container [2022-11-23 14:47:45,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:45" (3/3) ... [2022-11-23 14:47:45,657 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2022-11-23 14:47:45,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:47:45,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:47:45,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:47:45,789 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2bdeb9cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:47:45,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:47:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-11-23 14:47:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:47:45,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:45,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:45,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:47:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:45,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1958672206, now seen corresponding path program 1 times [2022-11-23 14:47:45,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:45,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599863636] [2022-11-23 14:47:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:47:45,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:47:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:47:46,039 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:47:46,041 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:47:46,042 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:47:46,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:47:46,048 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:47:46,051 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:47:46,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:47:46 BoogieIcfgContainer [2022-11-23 14:47:46,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:47:46,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:47:46,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:47:46,083 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:47:46,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:45" (3/4) ... [2022-11-23 14:47:46,088 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:47:46,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:47:46,090 INFO L158 Benchmark]: Toolchain (without parser) took 1175.16ms. Allocated memory is still 184.5MB. Free memory was 148.2MB in the beginning and 126.9MB in the end (delta: 21.2MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-11-23 14:47:46,090 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:47:46,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.70ms. Allocated memory is still 184.5MB. Free memory was 147.6MB in the beginning and 156.4MB in the end (delta: -8.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-23 14:47:46,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.84ms. Allocated memory is still 184.5MB. Free memory was 156.4MB in the beginning and 155.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:47:46,093 INFO L158 Benchmark]: Boogie Preprocessor took 17.75ms. Allocated memory is still 184.5MB. Free memory was 155.2MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:47:46,098 INFO L158 Benchmark]: RCFGBuilder took 365.28ms. Allocated memory is still 184.5MB. Free memory was 153.6MB in the beginning and 142.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:47:46,099 INFO L158 Benchmark]: TraceAbstraction took 442.48ms. Allocated memory is still 184.5MB. Free memory was 142.0MB in the beginning and 127.4MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:47:46,101 INFO L158 Benchmark]: Witness Printer took 8.57ms. Allocated memory is still 184.5MB. Free memory was 127.4MB in the beginning and 126.9MB in the end (delta: 437.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:47:46,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.70ms. Allocated memory is still 184.5MB. Free memory was 147.6MB in the beginning and 156.4MB in the end (delta: -8.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.84ms. Allocated memory is still 184.5MB. Free memory was 156.4MB in the beginning and 155.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.75ms. Allocated memory is still 184.5MB. Free memory was 155.2MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 365.28ms. Allocated memory is still 184.5MB. Free memory was 153.6MB in the beginning and 142.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 442.48ms. Allocated memory is still 184.5MB. Free memory was 142.0MB in the beginning and 127.4MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 8.57ms. Allocated memory is still 184.5MB. Free memory was 127.4MB in the beginning and 126.9MB in the end (delta: 437.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L42] CALL, EXPR f(IN) VAL [unknown-#in~x-unknown=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; [L42] RET, EXPR f(IN) VAL [f(IN)=55, IN=54] [L42] CALL, EXPR fp(IN) VAL [unknown-#in~x-unknown=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L42] RET, EXPR fp(IN) VAL [f(IN)=55, fp(IN)=56, IN=54] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [unknown-#in~x-unknown=57] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L44] RET, EXPR f(x) VAL [f(x)=53, IN=54, x=57] [L44] CALL, EXPR fp(x) VAL [unknown-#in~x-unknown=57] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L44] RET, EXPR fp(x) VAL [f(x)=53, fp(x)=58, IN=54, x=57] [L44] 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:47:46,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 --- 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-4e7fbc6 [2022-11-23 14:47:48,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:47:48,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:47:48,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:47:48,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:47:48,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:47:48,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:47:48,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:47:48,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:47:48,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:47:48,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:47:48,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:47:48,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:47:48,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:47:48,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:47:48,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:47:48,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:47:48,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:47:48,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:47:48,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:47:48,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:47:48,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:47:48,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:47:48,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:47:48,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:47:48,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:47:48,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:47:48,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:47:48,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:47:48,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:47:48,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:47:48,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:47:48,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:47:48,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:47:48,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:47:48,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:47:48,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:47:48,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:47:48,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:47:48,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:47:48,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:47:48,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 14:47:48,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:47:48,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:47:48,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:47:48,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:47:48,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:47:48,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:47:48,692 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:47:48,692 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:47:48,692 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:47:48,693 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:47:48,694 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:47:48,694 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:47:48,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:47:48,695 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:47:48,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:47:48,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:47:48,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:47:48,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:47:48,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:47:48,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:47:48,697 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:47:48,697 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:47:48,697 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:47:48,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:47:48,698 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:47:48,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:47:48,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:47:48,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:47:48,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:47:48,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:47:48,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:47:48,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:47:48,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:47:48,700 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:47:48,701 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:47:48,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:47:48,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:47:48,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:47:48,702 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_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 [2022-11-23 14:47:49,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:47:49,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:47:49,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:47:49,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:47:49,154 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:47:49,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-23 14:47:52,376 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:47:52,648 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:47:52,649 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-23 14:47:52,657 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data/fc3081393/64becbe329fe4ec486661e27689b72aa/FLAGbb238f682 [2022-11-23 14:47:52,683 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/data/fc3081393/64becbe329fe4ec486661e27689b72aa [2022-11-23 14:47:52,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:47:52,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:47:52,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:47:52,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:47:52,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:47:52,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:52" (1/1) ... [2022-11-23 14:47:52,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c49401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:52, skipping insertion in model container [2022-11-23 14:47:52,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:52" (1/1) ... [2022-11-23 14:47:52,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:47:52,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:47:52,952 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_d67f3141-c985-4b7c-add7-36c6a5352ba3/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-23 14:47:52,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:47:52,975 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:47:53,007 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_d67f3141-c985-4b7c-add7-36c6a5352ba3/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-23 14:47:53,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:47:53,027 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:47:53,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53 WrapperNode [2022-11-23 14:47:53,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:47:53,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:47:53,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:47:53,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:47:53,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,076 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-11-23 14:47:53,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:47:53,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:47:53,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:47:53,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:47:53,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:47:53,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:47:53,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:47:53,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:47:53,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (1/1) ... [2022-11-23 14:47:53,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:47:53,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:53,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:47:53,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:47:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:47:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-23 14:47:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-23 14:47:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:47:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-23 14:47:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-23 14:47:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:47:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:47:53,333 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:47:53,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:48:02,194 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:48:02,203 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:48:02,204 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:48:02,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:02 BoogieIcfgContainer [2022-11-23 14:48:02,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:48:02,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:48:02,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:48:02,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:48:02,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:47:52" (1/3) ... [2022-11-23 14:48:02,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9da4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:02, skipping insertion in model container [2022-11-23 14:48:02,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:53" (2/3) ... [2022-11-23 14:48:02,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9da4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:02, skipping insertion in model container [2022-11-23 14:48:02,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:02" (3/3) ... [2022-11-23 14:48:02,219 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2022-11-23 14:48:02,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:48:02,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:48:02,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:48:02,305 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20626154, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:48:02,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:48:02,309 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) [2022-11-23 14:48:02,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:48:02,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:02,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:02,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:02,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:02,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-11-23 14:48:02,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:02,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283474414] [2022-11-23 14:48:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:02,336 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 [2022-11-23 14:48:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:02,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:48:02,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:48:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:04,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:48:04,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:48:04,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:04,866 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:04,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283474414] [2022-11-23 14:48:04,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283474414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:04,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:04,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:48:04,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347227259] [2022-11-23 14:48:04,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:04,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:48:04,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:04,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:48:04,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:48:04,904 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) [2022-11-23 14:48:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:04,923 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-23 14:48:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:48:04,926 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 [2022-11-23 14:48:04,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:04,932 INFO L225 Difference]: With dead ends: 43 [2022-11-23 14:48:04,932 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 14:48:04,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:48:04,939 INFO L413 NwaCegarLoop]: 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 [2022-11-23 14:48:04,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:48:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 14:48:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 14:48:04,972 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) [2022-11-23 14:48:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-23 14:48:04,974 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-11-23 14:48:04,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:04,975 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-23 14:48:04,975 INFO L496 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) [2022-11-23 14:48:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-23 14:48:04,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:48:04,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:04,977 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:05,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:48:05,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:48:05,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:05,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-11-23 14:48:05,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:05,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655807341] [2022-11-23 14:48:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:05,193 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 [2022-11-23 14:48:05,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:05,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:48:05,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:49:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:49:36,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:49:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:49:58,443 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 14:49:58,443 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:49:58,445 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:49:58,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-23 14:49:58,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:49:58,650 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:49:58,654 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:49:58,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:49:58 BoogieIcfgContainer [2022-11-23 14:49:58,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:49:58,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:49:58,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:49:58,685 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:49:58,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:02" (3/4) ... [2022-11-23 14:49:58,687 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 14:49:58,728 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:49:58,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:49:58,730 INFO L158 Benchmark]: Toolchain (without parser) took 126041.49ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 35.6MB in the end (delta: 16.9MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-11-23 14:49:58,730 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:49:58,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.13ms. Allocated memory is still 73.4MB. Free memory was 52.4MB in the beginning and 41.4MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:49:58,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.97ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 39.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:49:58,732 INFO L158 Benchmark]: Boogie Preprocessor took 59.84ms. Allocated memory is still 73.4MB. Free memory was 39.8MB in the beginning and 38.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:49:58,732 INFO L158 Benchmark]: RCFGBuilder took 9067.13ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 45.9MB in the end (delta: -7.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-23 14:49:58,733 INFO L158 Benchmark]: TraceAbstraction took 116474.89ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 37.7MB in the end (delta: 7.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-23 14:49:58,733 INFO L158 Benchmark]: Witness Printer took 44.39ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 35.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:49:58,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.13ms. Allocated memory is still 73.4MB. Free memory was 52.4MB in the beginning and 41.4MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.97ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 39.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.84ms. Allocated memory is still 73.4MB. Free memory was 39.8MB in the beginning and 38.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9067.13ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 45.9MB in the end (delta: -7.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * TraceAbstraction took 116474.89ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 37.7MB in the end (delta: 7.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Witness Printer took 44.39ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 35.6MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L42] CALL, EXPR f(IN) VAL [unknown-#in~x-unknown=1.0927083492279053] [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 [\result=0.8886082768440247, unknown-#in~x-unknown=1.0927083492279053, x=1.0927083492279053] [L42] RET, EXPR f(IN) VAL [f(IN)=0.8886082768440247, IN=1.0927083492279053] [L42] CALL, EXPR fp(IN) VAL [unknown-#in~x-unknown=1.0927083492279053] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.4647611081600189, unknown-#in~x-unknown=1.0927083492279053, x=1.0927083492279053] [L42] RET, EXPR fp(IN) VAL [f(IN)=0.8886082768440247, fp(IN)=0.4647611081600189, IN=1.0927083492279053] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [unknown-#in~x-unknown=-0.8192594051361084] [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 [\result=-0.7307382822036743, unknown-#in~x-unknown=-0.8192594051361084, x=-0.8192594051361084] [L44] RET, EXPR f(x) VAL [f(x)=-0.7307382822036743, IN=1.0927083492279053, x=-0.8192594051361084] [L44] CALL, EXPR fp(x) VAL [unknown-#in~x-unknown=-0.8192594051361084] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.6835974454879761, unknown-#in~x-unknown=-0.8192594051361084, x=-0.8192594051361084] [L44] RET, EXPR fp(x) VAL [f(x)=-0.7307382822036743, fp(x)=0.6835974454879761, IN=1.0927083492279053, x=-0.8192594051361084] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=1.0927083492279053, x=0.24970054626464844] [L51] reach_error() VAL [IN=1.0927083492279053, x=0.24970054626464844] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 116.4s, OverallIterations: 2, TraceHistogramMax: 2, 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, 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, 23 GetRequests, 23 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, 93.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2022-11-23 14:49:58,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f3141-c985-4b7c-add7-36c6a5352ba3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE