./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:24:13,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:24:13,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:24:13,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:24:13,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:24:13,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:24:13,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:24:13,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:24:13,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:24:13,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:24:13,334 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:24:13,334 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:24:13,334 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:24:13,334 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:24:13,334 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:24:13,334 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:24:13,334 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:24:13,335 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:24:13,335 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:24:13,335 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:24:13,335 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:24:13,335 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:24:13,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:24:13,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:24:13,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:24:13,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:24:13,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:24:13,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:24:13,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:24:13,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:24:13,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:24:13,338 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:24:13,338 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:24:13,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:24:13,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:24:13,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:24:13,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:24:13,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:24:13,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:24:13,339 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 [2024-11-14 04:24:13,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:24:13,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:24:13,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:24:13,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:24:13,714 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:24:13,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i Unable to find full path for "g++" [2024-11-14 04:24:16,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:24:16,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:24:16,574 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2024-11-14 04:24:16,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data/1715e10bc/4ba3e8a657ee4edaa3cc7ce8b02a5e16/FLAGa439cbac8 [2024-11-14 04:24:16,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data/1715e10bc/4ba3e8a657ee4edaa3cc7ce8b02a5e16 [2024-11-14 04:24:16,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:24:16,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:24:16,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:24:16,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:24:16,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:24:16,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a77d172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16, skipping insertion in model container [2024-11-14 04:24:16,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:24:16,840 WARN L250 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_a216db29-34dd-443b-873f-dcc32a17e111/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2024-11-14 04:24:16,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:24:16,857 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:24:16,878 WARN L250 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_a216db29-34dd-443b-873f-dcc32a17e111/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2024-11-14 04:24:16,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:24:16,897 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:24:16,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16 WrapperNode [2024-11-14 04:24:16,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:24:16,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:24:16,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:24:16,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:24:16,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,937 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2024-11-14 04:24:16,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:24:16,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:24:16,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:24:16,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:24:16,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:24:16,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:24:16,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:24:16,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:24:16,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (1/1) ... [2024-11-14 04:24:16,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:24:16,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:24:17,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:24:17,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:24:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:24:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-14 04:24:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-14 04:24:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-14 04:24:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-14 04:24:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:24:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:24:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:24:17,129 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:24:17,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:24:17,328 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-14 04:24:17,329 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:24:17,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:24:17,411 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:24:17,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:24:17 BoogieIcfgContainer [2024-11-14 04:24:17,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:24:17,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:24:17,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:24:17,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:24:17,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:24:16" (1/3) ... [2024-11-14 04:24:17,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301bde90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:24:17, skipping insertion in model container [2024-11-14 04:24:17,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:16" (2/3) ... [2024-11-14 04:24:17,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301bde90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:24:17, skipping insertion in model container [2024-11-14 04:24:17,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:24:17" (3/3) ... [2024-11-14 04:24:17,425 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2024-11-14 04:24:17,445 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:24:17,447 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_2_6.i that has 3 procedures, 16 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 04:24:17,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:24:17,546 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3862c2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:24:17,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:24:17,552 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) [2024-11-14 04:24:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:24:17,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:17,563 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:24:17,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:17,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1568653486, now seen corresponding path program 1 times [2024-11-14 04:24:17,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:24:17,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723474967] [2024-11-14 04:24:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:24:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:24:17,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:24:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:24:17,723 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:24:17,725 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:24:17,727 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:24:17,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:24:17,737 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:24:17,765 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:24:17,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:24:17 BoogieIcfgContainer [2024-11-14 04:24:17,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:24:17,772 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:24:17,772 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:24:17,772 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:24:17,774 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:24:17" (3/4) ... [2024-11-14 04:24:17,776 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:24:17,777 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:24:17,778 INFO L158 Benchmark]: Toolchain (without parser) took 1169.71ms. Allocated memory is still 117.4MB. Free memory was 94.7MB in the beginning and 56.2MB in the end (delta: 38.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 04:24:17,778 INFO L158 Benchmark]: CDTParser took 1.98ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:24:17,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.38ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 83.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:24:17,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.52ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:24:17,780 INFO L158 Benchmark]: Boogie Preprocessor took 22.58ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.6MB in the end (delta: 692.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:24:17,780 INFO L158 Benchmark]: RCFGBuilder took 449.46ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 69.4MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:24:17,780 INFO L158 Benchmark]: TraceAbstraction took 356.02ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 56.6MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:24:17,781 INFO L158 Benchmark]: Witness Printer took 5.20ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 56.2MB in the end (delta: 346.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:24:17,786 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.98ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.38ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 83.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.52ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.58ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.6MB in the end (delta: 692.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 449.46ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 69.4MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 356.02ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 56.6MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 5.20ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 56.2MB in the end (delta: 346.1kB). 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 a call to reach_error is unreachable Unable to prove that a 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, overapproximation of someBinaryArithmeticFLOAToperation at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 34, overapproximation of someBinaryArithmeticFLOAToperation at line 42. 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 [\old(x)=53] [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 [IN=53] [L42] CALL, EXPR fp(IN) VAL [\old(x)=53] [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 [IN=53] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L44] RET, EXPR f(x) VAL [IN=53, x=54] [L44] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L44] RET, EXPR fp(x) VAL [IN=53, x=54] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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 [2024-11-14 04:24:17,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:24:20,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:24:21,011 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:24:21,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:24:21,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:24:21,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:24:21,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:24:21,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:24:21,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:24:21,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:24:21,069 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:24:21,069 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:24:21,069 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:24:21,070 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:24:21,070 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:24:21,070 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:24:21,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:24:21,070 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:24:21,071 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:24:21,072 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:24:21,072 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:24:21,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:24:21,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:24:21,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:24:21,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:24:21,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:24:21,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:24:21,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:24:21,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:24:21,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:24:21,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:24:21,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:24:21,073 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:24:21,074 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:24:21,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:24:21,074 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:24:21,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 [2024-11-14 04:24:21,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:24:21,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:24:21,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:24:21,553 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:24:21,553 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:24:21,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i Unable to find full path for "g++" [2024-11-14 04:24:23,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:24:24,176 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:24:24,181 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2024-11-14 04:24:24,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data/75c56920c/4b89f71354cb409abf81dde2fe869e16/FLAGcb0e9a465 [2024-11-14 04:24:24,260 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/data/75c56920c/4b89f71354cb409abf81dde2fe869e16 [2024-11-14 04:24:24,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:24:24,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:24:24,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:24:24,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:24:24,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:24:24,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9f7718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24, skipping insertion in model container [2024-11-14 04:24:24,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,345 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:24:24,600 WARN L250 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_a216db29-34dd-443b-873f-dcc32a17e111/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2024-11-14 04:24:24,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:24:24,629 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:24:24,665 WARN L250 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_a216db29-34dd-443b-873f-dcc32a17e111/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2024-11-14 04:24:24,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:24:24,699 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:24:24,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24 WrapperNode [2024-11-14 04:24:24,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:24:24,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:24:24,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:24:24,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:24:24,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,754 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2024-11-14 04:24:24,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:24:24,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:24:24,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:24:24,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:24:24,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:24:24,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:24:24,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:24:24,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:24:24,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (1/1) ... [2024-11-14 04:24:24,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:24:24,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:24:24,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:24:24,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:24:24,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:24:24,906 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-14 04:24:24,906 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-14 04:24:24,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:24:24,907 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-14 04:24:24,907 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-14 04:24:24,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:24:24,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:24:25,002 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:24:25,005 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:24:32,934 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-14 04:24:32,934 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:24:32,947 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:24:32,947 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:24:32,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:24:32 BoogieIcfgContainer [2024-11-14 04:24:32,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:24:32,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:24:32,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:24:32,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:24:32,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:24:24" (1/3) ... [2024-11-14 04:24:32,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ea888d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:24:32, skipping insertion in model container [2024-11-14 04:24:32,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:24" (2/3) ... [2024-11-14 04:24:32,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ea888d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:24:32, skipping insertion in model container [2024-11-14 04:24:32,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:24:32" (3/3) ... [2024-11-14 04:24:32,962 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2024-11-14 04:24:32,983 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:24:32,985 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_2_6.i that has 3 procedures, 23 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 04:24:33,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:24:33,083 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5f32f21d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:24:33,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:24:33,089 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) [2024-11-14 04:24:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 04:24:33,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:33,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:24:33,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:33,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:33,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2024-11-14 04:24:33,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:24:33,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222955417] [2024-11-14 04:24:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:33,135 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 [2024-11-14 04:24:33,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:24:33,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:24:33,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:24:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:24:36,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:24:36,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:24:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:24:36,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:24:36,213 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:24:36,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222955417] [2024-11-14 04:24:36,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222955417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:24:36,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:24:36,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:24:36,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526595516] [2024-11-14 04:24:36,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:24:36,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:24:36,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:24:36,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:24:36,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:24:36,251 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) [2024-11-14 04:24:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:24:36,276 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-14 04:24:36,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:24:36,279 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 [2024-11-14 04:24:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:24:36,286 INFO L225 Difference]: With dead ends: 43 [2024-11-14 04:24:36,287 INFO L226 Difference]: Without dead ends: 19 [2024-11-14 04:24:36,290 INFO L431 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 [2024-11-14 04:24:36,294 INFO L432 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 [2024-11-14 04:24:36,295 INFO L433 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] [2024-11-14 04:24:36,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-14 04:24:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-14 04:24:36,333 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) [2024-11-14 04:24:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-14 04:24:36,342 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2024-11-14 04:24:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:24:36,345 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-14 04:24:36,345 INFO L472 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) [2024-11-14 04:24:36,345 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-14 04:24:36,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 04:24:36,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:36,348 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:24:36,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:24:36,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:24:36,549 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:36,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:36,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2024-11-14 04:24:36,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:24:36,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100277994] [2024-11-14 04:24:36,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:36,551 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 [2024-11-14 04:24:36,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:24:36,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:24:36,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a216db29-34dd-443b-873f-dcc32a17e111/bin/utaipan-verify-sOmjnqqW8E/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