./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:56:11,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:56:11,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:56:11,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:56:11,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:56:11,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:56:11,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:56:11,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:56:11,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:56:11,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:56:11,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:56:11,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:56:11,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:56:11,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:56:11,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:56:11,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:56:11,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:56:11,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:56:11,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:56:11,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:56:11,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:56:11,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:56:11,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:56:11,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:56:11,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:56:11,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:56:11,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:56:11,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:56:11,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:56:11,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:56:11,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:56:11,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:56:11,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:56:11,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:56:11,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:56:11,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:56:11,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:56:11,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:56:11,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:56:11,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:56:11,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:56:11,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:56:11,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:56:11,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:56:11,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:56:11,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:56:11,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:56:11,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:56:11,352 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:56:11,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:56:11,353 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:56:11,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:56:11,353 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:56:11,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:56:11,353 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:56:11,353 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:56:11,353 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:56:11,354 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:56:11,354 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:56:11,354 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:56:11,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:56:11,355 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:56:11,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:56:11,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:56:11,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:56:11,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:56:11,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:56:11,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:56:11,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:56:11,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:56:11,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:56:11,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:56:11,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:56:11,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:56:11,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:56:11,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:56:11,357 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:56:11,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:56:11,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:56:11,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:56:11,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:56:11,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:56:11,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:56:11,362 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_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a [2022-12-14 07:56:11,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:56:11,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:56:11,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:56:11,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:56:11,574 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:56:11,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-12-14 07:56:14,131 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:56:14,256 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:56:14,256 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-12-14 07:56:14,261 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data/d263b2582/370d6921141043e4907ccf64deaf3b2e/FLAGeed950dea [2022-12-14 07:56:14,685 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data/d263b2582/370d6921141043e4907ccf64deaf3b2e [2022-12-14 07:56:14,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:56:14,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:56:14,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:56:14,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:56:14,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:56:14,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78549f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14, skipping insertion in model container [2022-12-14 07:56:14,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:56:14,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:56:14,816 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_90e9fecd-c34e-4617-b22a-ee0aa825524b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1743,1756] [2022-12-14 07:56:14,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:56:14,826 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:56:14,837 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_90e9fecd-c34e-4617-b22a-ee0aa825524b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1743,1756] [2022-12-14 07:56:14,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:56:14,847 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:56:14,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14 WrapperNode [2022-12-14 07:56:14,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:56:14,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:56:14,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:56:14,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:56:14,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,869 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-12-14 07:56:14,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:56:14,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:56:14,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:56:14,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:56:14,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,882 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:56:14,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:56:14,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:56:14,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:56:14,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (1/1) ... [2022-12-14 07:56:14,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:56:14,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:56:14,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:56:14,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:56:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:56:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 07:56:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 07:56:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-14 07:56:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-14 07:56:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:56:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:56:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:56:14,991 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:56:14,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:56:15,069 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:56:15,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:56:15,090 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:56:15,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:56:15 BoogieIcfgContainer [2022-12-14 07:56:15,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:56:15,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:56:15,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:56:15,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:56:15,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:56:14" (1/3) ... [2022-12-14 07:56:15,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415c4ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:56:15, skipping insertion in model container [2022-12-14 07:56:15,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:14" (2/3) ... [2022-12-14 07:56:15,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415c4ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:56:15, skipping insertion in model container [2022-12-14 07:56:15,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:56:15" (3/3) ... [2022-12-14 07:56:15,098 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2022-12-14 07:56:15,112 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:56:15,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:56:15,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:56:15,152 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;@1e2f5990, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:56:15,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:56:15,156 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) [2022-12-14 07:56:15,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 07:56:15,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:56:15,161 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:56:15,162 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:56:15,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:56:15,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1828665966, now seen corresponding path program 1 times [2022-12-14 07:56:15,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:56:15,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001664090] [2022-12-14 07:56:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:56:15,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:56:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:56:15,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:56:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:56:15,276 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 07:56:15,278 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:56:15,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 07:56:15,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:56:15,283 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 07:56:15,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:56:15,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:56:15 BoogieIcfgContainer [2022-12-14 07:56:15,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:56:15,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:56:15,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:56:15,301 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:56:15,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:56:15" (3/4) ... [2022-12-14 07:56:15,304 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:56:15,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:56:15,304 INFO L158 Benchmark]: Toolchain (without parser) took 615.40ms. Allocated memory is still 161.5MB. Free memory was 110.4MB in the beginning and 113.3MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:56:15,305 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:56:15,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.05ms. Allocated memory is still 161.5MB. Free memory was 110.1MB in the beginning and 99.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:56:15,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.88ms. Allocated memory is still 161.5MB. Free memory was 99.8MB in the beginning and 98.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:56:15,306 INFO L158 Benchmark]: Boogie Preprocessor took 13.36ms. Allocated memory is still 161.5MB. Free memory was 98.4MB in the beginning and 97.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:56:15,306 INFO L158 Benchmark]: RCFGBuilder took 207.96ms. Allocated memory is still 161.5MB. Free memory was 97.1MB in the beginning and 128.6MB in the end (delta: -31.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-12-14 07:56:15,306 INFO L158 Benchmark]: TraceAbstraction took 206.99ms. Allocated memory is still 161.5MB. Free memory was 128.0MB in the beginning and 113.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:56:15,307 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 113.3MB in the end (delta: 551.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:56:15,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.05ms. Allocated memory is still 161.5MB. Free memory was 110.1MB in the beginning and 99.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.88ms. Allocated memory is still 161.5MB. Free memory was 99.8MB in the beginning and 98.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.36ms. Allocated memory is still 161.5MB. Free memory was 98.4MB in the beginning and 97.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 207.96ms. Allocated memory is still 161.5MB. Free memory was 97.1MB in the beginning and 128.6MB in the end (delta: -31.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * TraceAbstraction took 206.99ms. Allocated memory is still 161.5MB. Free memory was 128.0MB in the beginning and 113.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 113.3MB in the end (delta: 551.7kB). 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 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=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 [\old(x)=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 [\old(x)=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 [\old(x)=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: 0.1s, 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, 0.0s 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 [2022-12-14 07:56:15,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:56:16,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:56:16,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:56:16,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:56:16,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:56:16,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:56:16,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:56:16,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:56:16,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:56:16,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:56:16,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:56:16,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:56:16,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:56:16,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:56:16,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:56:16,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:56:16,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:56:16,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:56:16,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:56:16,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:56:16,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:56:16,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:56:16,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:56:16,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:56:16,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:56:16,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:56:16,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:56:16,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:56:16,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:56:16,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:56:16,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:56:16,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:56:16,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:56:16,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:56:16,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:56:16,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:56:16,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:56:16,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:56:16,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:56:16,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:56:16,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:56:16,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 07:56:16,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:56:16,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:56:16,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:56:16,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:56:16,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:56:16,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:56:16,938 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:56:16,938 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:56:16,939 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:56:16,939 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:56:16,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:56:16,939 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:56:16,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:56:16,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:56:16,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:56:16,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:56:16,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:56:16,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:56:16,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:56:16,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:56:16,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:56:16,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:56:16,942 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:56:16,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:56:16,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:56:16,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:56:16,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:56:16,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:56:16,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:56:16,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:56:16,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:56:16,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:56:16,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:56:16,944 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:56:16,944 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:56:16,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:56:16,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:56:16,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:56:16,945 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_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a [2022-12-14 07:56:17,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:56:17,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:56:17,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:56:17,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:56:17,201 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:56:17,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-12-14 07:56:19,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:56:19,931 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:56:19,932 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-12-14 07:56:19,939 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data/3297df9c0/b32f3947ad3c4cb3a75fb5ed9389d0bd/FLAGcea189731 [2022-12-14 07:56:20,320 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/data/3297df9c0/b32f3947ad3c4cb3a75fb5ed9389d0bd [2022-12-14 07:56:20,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:56:20,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:56:20,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:56:20,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:56:20,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:56:20,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c65ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20, skipping insertion in model container [2022-12-14 07:56:20,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:56:20,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:56:20,447 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_90e9fecd-c34e-4617-b22a-ee0aa825524b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1743,1756] [2022-12-14 07:56:20,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:56:20,459 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:56:20,471 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_90e9fecd-c34e-4617-b22a-ee0aa825524b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1743,1756] [2022-12-14 07:56:20,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:56:20,481 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:56:20,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20 WrapperNode [2022-12-14 07:56:20,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:56:20,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:56:20,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:56:20,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:56:20,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,505 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-12-14 07:56:20,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:56:20,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:56:20,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:56:20,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:56:20,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,521 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:56:20,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:56:20,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:56:20,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:56:20,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (1/1) ... [2022-12-14 07:56:20,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:56:20,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:56:20,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:56:20,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:56:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:56:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 07:56:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 07:56:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 07:56:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-14 07:56:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-14 07:56:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:56:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:56:20,641 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:56:20,643 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:56:29,534 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:56:29,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:56:29,541 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:56:29,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:56:29 BoogieIcfgContainer [2022-12-14 07:56:29,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:56:29,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:56:29,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:56:29,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:56:29,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:56:20" (1/3) ... [2022-12-14 07:56:29,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5393de61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:56:29, skipping insertion in model container [2022-12-14 07:56:29,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:56:20" (2/3) ... [2022-12-14 07:56:29,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5393de61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:56:29, skipping insertion in model container [2022-12-14 07:56:29,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:56:29" (3/3) ... [2022-12-14 07:56:29,554 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2022-12-14 07:56:29,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:56:29,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:56:29,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:56:29,617 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;@28fdee4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:56:29,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:56:29,621 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) [2022-12-14 07:56:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 07:56:29,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:56:29,627 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] [2022-12-14 07:56:29,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:56:29,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:56:29,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-12-14 07:56:29,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:56:29,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367314617] [2022-12-14 07:56:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:56:29,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:56:29,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:56:29,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:56:29,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 07:56:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:56:31,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 07:56:31,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:56:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 07:56:31,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:56:31,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:56:31,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367314617] [2022-12-14 07:56:31,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367314617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:56:31,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:56:31,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:56:31,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949784375] [2022-12-14 07:56:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:56:31,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:56:31,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:56:31,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:56:31,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:56:31,862 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) [2022-12-14 07:56:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:56:31,876 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-12-14 07:56:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:56:31,878 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 [2022-12-14 07:56:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:56:31,883 INFO L225 Difference]: With dead ends: 43 [2022-12-14 07:56:31,883 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 07:56:31,885 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 [2022-12-14 07:56:31,888 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 [2022-12-14 07:56:31,890 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] [2022-12-14 07:56:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 07:56:31,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 07:56:31,915 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) [2022-12-14 07:56:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-12-14 07:56:31,917 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-12-14 07:56:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:56:31,917 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-12-14 07:56:31,918 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) [2022-12-14 07:56:31,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-12-14 07:56:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 07:56:31,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:56:31,919 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] [2022-12-14 07:56:31,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:56:32,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:56:32,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:56:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:56:32,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-12-14 07:56:32,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:56:32,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444251086] [2022-12-14 07:56:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:56:32,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:56:32,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:56:32,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:56:32,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 07:57:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:57:24,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:57:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:57:31,519 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 07:57:31,519 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:57:31,521 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 07:57:31,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 07:57:31,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:57:31,733 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 07:57:31,746 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:57:31,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:57:31 BoogieIcfgContainer [2022-12-14 07:57:31,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:57:31,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:57:31,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:57:31,781 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:57:31,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:56:29" (3/4) ... [2022-12-14 07:57:31,783 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 07:57:31,821 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:57:31,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:57:31,822 INFO L158 Benchmark]: Toolchain (without parser) took 71498.43ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 49.9MB in the beginning and 50.0MB in the end (delta: -89.4kB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-12-14 07:57:31,822 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:57:31,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.82ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 38.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 07:57:31,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.49ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 37.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:57:31,823 INFO L158 Benchmark]: Boogie Preprocessor took 17.38ms. Allocated memory is still 71.3MB. Free memory was 37.3MB in the beginning and 35.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:57:31,824 INFO L158 Benchmark]: RCFGBuilder took 9019.70ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 35.8MB in the beginning and 80.4MB in the end (delta: -44.6MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-12-14 07:57:31,824 INFO L158 Benchmark]: TraceAbstraction took 62233.31ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 52.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 07:57:31,825 INFO L158 Benchmark]: Witness Printer took 40.22ms. Allocated memory is still 102.8MB. Free memory was 52.2MB in the beginning and 50.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:57:31,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.82ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 38.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.49ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 37.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.38ms. Allocated memory is still 71.3MB. Free memory was 37.3MB in the beginning and 35.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9019.70ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 35.8MB in the beginning and 80.4MB in the end (delta: -44.6MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 62233.31ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 52.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 40.22ms. Allocated memory is still 102.8MB. Free memory was 52.2MB in the beginning and 50.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=1.8832679986953735] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.8832679986953735, \result=0.9841227531433105, x=1.8832679986953735] [L42] RET, EXPR f(IN) VAL [f(IN)=0.9841227531433105, IN=1.8832679986953735] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.8832679986953735] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.8832679986953735, \result=-0.18725715577602386, x=1.8832679986953735] [L42] RET, EXPR fp(IN) VAL [f(IN)=0.9841227531433105, fp(IN)=-0.18725715577602386, IN=1.8832679986953735] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=7.138729095458984] [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)=7.138729095458984, \result=288.46661376953125, x=7.138729095458984] [L44] RET, EXPR f(x) VAL [f(x)=288.46661376953125, IN=1.8832679986953735, x=7.138729095458984] [L44] CALL, EXPR fp(x) VAL [\old(x)=7.138729095458984] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=7.138729095458984, \result=267.55059814453125, x=7.138729095458984] [L44] RET, EXPR fp(x) VAL [f(x)=288.46661376953125, fp(x)=267.55059814453125, IN=1.8832679986953735, x=7.138729095458984] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=1.8832679986953735, x=6.060553073883057] [L51] reach_error() VAL [IN=1.8832679986953735, x=6.060553073883057] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.1s, 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, 54.1s 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! [2022-12-14 07:57:31,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9fecd-c34e-4617-b22a-ee0aa825524b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE