./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_1.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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ab5777642cde097746efbdcec62a3bf9c0f2990d306ce817d23d6ae18cd58fa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:15:09,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:15:09,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:15:09,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:15:09,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:15:09,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:15:09,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:15:09,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:15:09,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:15:09,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:15:09,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:15:09,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:15:09,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:15:09,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:15:09,801 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:15:09,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:15:09,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:15:09,801 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:15:09,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:15:09,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:15:09,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:15:09,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:15:09,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:15:09,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:15:09,803 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:15:09,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:15:09,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:15:09,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:15:09,805 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ab5777642cde097746efbdcec62a3bf9c0f2990d306ce817d23d6ae18cd58fa [2024-11-13 13:15:10,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:15:10,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:15:10,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:15:10,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:15:10,090 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:15:10,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/floats-cdfpl/newton_2_1.i Unable to find full path for "g++" [2024-11-13 13:15:12,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:15:12,331 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:15:12,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/sv-benchmarks/c/floats-cdfpl/newton_2_1.i [2024-11-13 13:15:12,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data/7a9890ca6/6675b57d2b8b405f9dda11f458f6951d/FLAG58bdf7bdc [2024-11-13 13:15:12,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data/7a9890ca6/6675b57d2b8b405f9dda11f458f6951d [2024-11-13 13:15:12,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:15:12,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:15:12,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:15:12,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:15:12,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:15:12,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c48e19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12, skipping insertion in model container [2024-11-13 13:15:12,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:15:12,595 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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/sv-benchmarks/c/floats-cdfpl/newton_2_1.i[1743,1756] [2024-11-13 13:15:12,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:15:12,607 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:15:12,627 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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/sv-benchmarks/c/floats-cdfpl/newton_2_1.i[1743,1756] [2024-11-13 13:15:12,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:15:12,650 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:15:12,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12 WrapperNode [2024-11-13 13:15:12,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:15:12,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:15:12,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:15:12,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:15:12,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,683 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2024-11-13 13:15:12,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:15:12,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:15:12,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:15:12,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:15:12,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,709 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:15:12,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:15:12,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:15:12,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:15:12,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:15:12,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (1/1) ... [2024-11-13 13:15:12,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:15:12,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:15:12,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:15:12,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:15:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:15:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 13:15:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 13:15:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-13 13:15:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-13 13:15:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:15:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:15:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:15:12,868 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:15:12,871 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:15:13,004 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-13 13:15:13,004 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:15:13,013 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:15:13,013 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:15:13,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:15:13 BoogieIcfgContainer [2024-11-13 13:15:13,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:15:13,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:15:13,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:15:13,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:15:13,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:15:12" (1/3) ... [2024-11-13 13:15:13,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa61e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:15:13, skipping insertion in model container [2024-11-13 13:15:13,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:12" (2/3) ... [2024-11-13 13:15:13,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa61e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:15:13, skipping insertion in model container [2024-11-13 13:15:13,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:15:13" (3/3) ... [2024-11-13 13:15:13,023 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_1.i [2024-11-13 13:15:13,039 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:15:13,040 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_2_1.i that has 3 procedures, 23 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 13:15:13,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:15:13,115 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=PETRI_NET, 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;@20ab4784, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:15:13,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:15:13,120 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) [2024-11-13 13:15:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 13:15:13,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:13,128 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] [2024-11-13 13:15:13,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:13,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:13,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2024-11-13 13:15:13,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:15:13,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064996551] [2024-11-13 13:15:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:13,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:15:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:13,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:15:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:13,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 13:15:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:13,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 13:15:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:13,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:15:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 13:15:13,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:15:13,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064996551] [2024-11-13 13:15:13,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064996551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:15:13,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:15:13,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:15:13,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616549032] [2024-11-13 13:15:13,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:13,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:15:13,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:15:13,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:15:13,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:15:13,332 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) [2024-11-13 13:15:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:13,351 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-13 13:15:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:15:13,353 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 [2024-11-13 13:15:13,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:13,359 INFO L225 Difference]: With dead ends: 43 [2024-11-13 13:15:13,359 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 13:15:13,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:15:13,367 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 [2024-11-13 13:15:13,368 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] [2024-11-13 13:15:13,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 13:15:13,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 13:15:13,400 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) [2024-11-13 13:15:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-13 13:15:13,407 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2024-11-13 13:15:13,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:13,407 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-13 13:15:13,408 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) [2024-11-13 13:15:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-13 13:15:13,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 13:15:13,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:13,415 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] [2024-11-13 13:15:13,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:15:13,416 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:13,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:13,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2024-11-13 13:15:13,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:15:13,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652816145] [2024-11-13 13:15:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:13,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:15:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:15:13,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:15:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:15:13,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:15:13,493 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:15:13,497 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:15:13,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:15:13,502 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 13:15:13,521 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:15:13,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:15:13 BoogieIcfgContainer [2024-11-13 13:15:13,527 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:15:13,529 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:15:13,529 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:15:13,530 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:15:13,530 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:15:13" (3/4) ... [2024-11-13 13:15:13,532 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:15:13,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:15:13,534 INFO L158 Benchmark]: Toolchain (without parser) took 1152.90ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 48.4MB in the end (delta: 46.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 13:15:13,534 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:15:13,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.27ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 83.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:15:13,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.23ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:15:13,536 INFO L158 Benchmark]: Boogie Preprocessor took 42.95ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 80.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:15:13,537 INFO L158 Benchmark]: RCFGBuilder took 286.21ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 70.4MB in the end (delta: 10.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:15:13,538 INFO L158 Benchmark]: TraceAbstraction took 511.11ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 48.4MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:15:13,538 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 117.4MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:15:13,540 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.27ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 83.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.23ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.95ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 80.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.21ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 70.4MB in the end (delta: 10.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 511.11ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 48.4MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 117.4MB. Free memory is still 48.4MB. 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 42, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 34, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -0.2f && IN < 0.2f) [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; VAL [\old(x)=53] [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; VAL [\old(x)=53] [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; VAL [\old(x)=54] [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; VAL [\old(x)=54] [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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 13:15:13,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ab5777642cde097746efbdcec62a3bf9c0f2990d306ce817d23d6ae18cd58fa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:15:16,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:15:16,197 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 13:15:16,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:15:16,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:15:16,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:15:16,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:15:16,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:15:16,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:15:16,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:15:16,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:15:16,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:15:16,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:15:16,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:15:16,270 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:15:16,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:15:16,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:15:16,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:15:16,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:15:16,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:15:16,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:15:16,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:15:16,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:15:16,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:15:16,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:15:16,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:15:16,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:15:16,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:15:16,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:15:16,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:15:16,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:15:16,274 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:15:16,274 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:15:16,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:15:16,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:15:16,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:15:16,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:15:16,274 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ab5777642cde097746efbdcec62a3bf9c0f2990d306ce817d23d6ae18cd58fa [2024-11-13 13:15:16,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:15:16,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:15:16,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:15:16,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:15:16,567 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:15:16,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/floats-cdfpl/newton_2_1.i Unable to find full path for "g++" [2024-11-13 13:15:18,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:15:18,675 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:15:18,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/sv-benchmarks/c/floats-cdfpl/newton_2_1.i [2024-11-13 13:15:18,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data/ee0842483/20ec6c6c0d034814acc27af335ce6988/FLAGba43e20de [2024-11-13 13:15:18,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/data/ee0842483/20ec6c6c0d034814acc27af335ce6988 [2024-11-13 13:15:18,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:15:18,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:15:18,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:15:18,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:15:18,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:15:18,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:18,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25723343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18, skipping insertion in model container [2024-11-13 13:15:18,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:18,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:15:18,903 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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/sv-benchmarks/c/floats-cdfpl/newton_2_1.i[1743,1756] [2024-11-13 13:15:18,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:15:18,923 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:15:18,941 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_8d686bac-b067-4a2d-bf5e-c8cede0094ba/sv-benchmarks/c/floats-cdfpl/newton_2_1.i[1743,1756] [2024-11-13 13:15:18,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:15:18,958 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:15:18,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18 WrapperNode [2024-11-13 13:15:18,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:15:18,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:15:18,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:15:18,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:15:18,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:18,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,006 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2024-11-13 13:15:19,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:15:19,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:15:19,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:15:19,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:15:19,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,033 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:15:19,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:15:19,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:15:19,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:15:19,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:15:19,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (1/1) ... [2024-11-13 13:15:19,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:15:19,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:15:19,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:15:19,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:15:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:15:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 13:15:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 13:15:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:15:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-13 13:15:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-13 13:15:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:15:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:15:19,179 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:15:19,181 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:15:30,786 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-13 13:15:30,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:15:30,809 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:15:30,814 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:15:30,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:15:30 BoogieIcfgContainer [2024-11-13 13:15:30,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:15:30,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:15:30,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:15:30,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:15:30,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:15:18" (1/3) ... [2024-11-13 13:15:30,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f561864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:15:30, skipping insertion in model container [2024-11-13 13:15:30,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:15:18" (2/3) ... [2024-11-13 13:15:30,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f561864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:15:30, skipping insertion in model container [2024-11-13 13:15:30,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:15:30" (3/3) ... [2024-11-13 13:15:30,834 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_1.i [2024-11-13 13:15:30,868 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:15:30,870 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_2_1.i that has 3 procedures, 23 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 13:15:30,935 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:15:30,951 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=PETRI_NET, 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;@6b59012e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:15:30,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:15:30,956 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) [2024-11-13 13:15:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 13:15:30,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:30,966 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] [2024-11-13 13:15:30,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:30,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:30,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2024-11-13 13:15:30,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:15:30,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138217540] [2024-11-13 13:15:30,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:30,984 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 [2024-11-13 13:15:30,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:15:30,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 13:15:30,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 13:15:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:33,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 13:15:33,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 13:15:33,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:15:33,225 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:15:33,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138217540] [2024-11-13 13:15:33,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138217540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:15:33,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:15:33,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:15:33,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159045181] [2024-11-13 13:15:33,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:33,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:15:33,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:15:33,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:15:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:15:33,249 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) [2024-11-13 13:15:33,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:33,268 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-13 13:15:33,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:15:33,269 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 [2024-11-13 13:15:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:33,275 INFO L225 Difference]: With dead ends: 43 [2024-11-13 13:15:33,275 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 13:15:33,277 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 [2024-11-13 13:15:33,280 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 [2024-11-13 13:15:33,281 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] [2024-11-13 13:15:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 13:15:33,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 13:15:33,307 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) [2024-11-13 13:15:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-13 13:15:33,315 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2024-11-13 13:15:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:33,315 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-13 13:15:33,315 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) [2024-11-13 13:15:33,315 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-13 13:15:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 13:15:33,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:33,317 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] [2024-11-13 13:15:33,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 13:15:33,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 13:15:33,521 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:33,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:33,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2024-11-13 13:15:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:15:33,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177998602] [2024-11-13 13:15:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:33,522 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 [2024-11-13 13:15:33,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:15:33,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 13:15:33,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d686bac-b067-4a2d-bf5e-c8cede0094ba/bin/uautomizer-verify-qhAvR1uOyd/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