./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:38:04,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:38:04,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:38:04,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:38:04,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:38:04,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:38:04,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:38:04,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:38:04,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:38:04,606 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:38:04,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:38:04,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:38:04,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:38:04,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:38:04,607 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:38:04,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:38:04,608 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:38:04,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:04,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:04,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:04,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:04,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:38:04,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:04,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:04,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:04,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:04,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:38:04,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:38:04,610 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a [2025-01-09 05:38:04,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:38:04,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:38:04,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:38:04,857 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:38:04,857 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:38:04,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2025-01-09 05:38:06,088 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd3898a1a/09bb2596565d43f5a6a4bfb62c8c9982/FLAG54131cf60 [2025-01-09 05:38:06,318 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:38:06,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2025-01-09 05:38:06,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd3898a1a/09bb2596565d43f5a6a4bfb62c8c9982/FLAG54131cf60 [2025-01-09 05:38:06,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd3898a1a/09bb2596565d43f5a6a4bfb62c8c9982 [2025-01-09 05:38:06,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:38:06,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:38:06,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:06,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:38:06,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:38:06,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495cfb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06, skipping insertion in model container [2025-01-09 05:38:06,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:38:06,793 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2025-01-09 05:38:06,816 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2025-01-09 05:38:06,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:06,825 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:38:06,834 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2025-01-09 05:38:06,845 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2025-01-09 05:38:06,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:06,860 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:38:06,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06 WrapperNode [2025-01-09 05:38:06,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:06,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:06,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:38:06,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:38:06,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,890 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2025-01-09 05:38:06,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:06,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:38:06,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:38:06,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:38:06,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,901 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,911 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-01-09 05:38:06,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,916 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:38:06,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:38:06,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:38:06,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:38:06,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (1/1) ... [2025-01-09 05:38:06,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:06,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:38:06,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 05:38:06,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 05:38:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:38:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:38:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 05:38:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:38:06,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:38:06,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 05:38:06,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 05:38:07,035 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:38:07,036 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:38:07,179 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-01-09 05:38:07,179 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:38:07,186 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:38:07,186 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:38:07,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:07 BoogieIcfgContainer [2025-01-09 05:38:07,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:38:07,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:38:07,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:38:07,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:38:07,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:38:06" (1/3) ... [2025-01-09 05:38:07,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59141f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:07, skipping insertion in model container [2025-01-09 05:38:07,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:06" (2/3) ... [2025-01-09 05:38:07,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59141f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:07, skipping insertion in model container [2025-01-09 05:38:07,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:07" (3/3) ... [2025-01-09 05:38:07,197 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_5.i [2025-01-09 05:38:07,208 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:38:07,209 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_5.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:38:07,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:38:07,272 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;@9297b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:38:07,272 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:38:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 05:38:07,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:38:07,286 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:38:07,291 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:38:07,291 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:38:07,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:38:07,295 INFO L85 PathProgramCache]: Analyzing trace with hash 841157774, now seen corresponding path program 1 times [2025-01-09 05:38:07,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:38:07,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909139226] [2025-01-09 05:38:07,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:38:07,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:38:07,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:38:07,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:38:07,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:38:07,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:38:07,386 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:38:07,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:38:07,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:38:07,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:38:07,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:38:07,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 05:38:07,406 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:38:07,407 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:38:07,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:38:07,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:38:07,411 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 05:38:07,420 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:38:07,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:38:07 BoogieIcfgContainer [2025-01-09 05:38:07,422 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:38:07,423 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:38:07,423 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:38:07,423 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:38:07,423 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:07" (3/4) ... [2025-01-09 05:38:07,425 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 05:38:07,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:38:07,426 INFO L158 Benchmark]: Toolchain (without parser) took 745.50ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 64.7MB in the end (delta: 41.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 05:38:07,426 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:38:07,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.36ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 94.4MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:38:07,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.53ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:38:07,427 INFO L158 Benchmark]: Boogie Preprocessor took 32.20ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 90.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:38:07,427 INFO L158 Benchmark]: RCFGBuilder took 263.09ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 78.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:38:07,428 INFO L158 Benchmark]: TraceAbstraction took 231.93ms. Allocated memory is still 142.6MB. Free memory was 77.5MB in the beginning and 65.7MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 05:38:07,428 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 142.6MB. Free memory was 65.7MB in the beginning and 64.7MB in the end (delta: 976.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:38:07,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.36ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 94.4MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.53ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.20ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 90.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.09ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 78.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 231.93ms. Allocated memory is still 142.6MB. Free memory was 77.5MB in the beginning and 65.7MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 142.6MB. Free memory was 65.7MB in the beginning and 64.7MB in the end (delta: 976.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 109]: 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 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 87. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) [L109] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, 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=32occurred 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, 9 NumberOfCodeBlocks, 9 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 05:38:07,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:38:09,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:38:09,654 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 05:38:09,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:38:09,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:38:09,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:38:09,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:38:09,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:38:09,690 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:38:09,690 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:38:09,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:38:09,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:38:09,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:38:09,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:38:09,692 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:38:09,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:38:09,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:38:09,692 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:38:09,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:38:09,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:38:09,693 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:38:09,693 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:38:09,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:09,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:09,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:09,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:09,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:38:09,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:38:09,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:38:09,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:38:09,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:09,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:38:09,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:38:09,695 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:38:09,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:38:09,695 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 05:38:09,696 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 05:38:09,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:38:09,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:38:09,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:38:09,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:38:09,696 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a [2025-01-09 05:38:10,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:38:10,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:38:10,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:38:10,074 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:38:10,074 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:38:10,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2025-01-09 05:38:11,462 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/330fe5691/05b219e7281c4dd3aecc3216e5f5ec5c/FLAGa5812a05d [2025-01-09 05:38:11,676 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:38:11,677 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2025-01-09 05:38:11,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/330fe5691/05b219e7281c4dd3aecc3216e5f5ec5c/FLAGa5812a05d [2025-01-09 05:38:11,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/330fe5691/05b219e7281c4dd3aecc3216e5f5ec5c [2025-01-09 05:38:11,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:38:11,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:38:11,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:11,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:38:11,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:38:11,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:11,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba85931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11, skipping insertion in model container [2025-01-09 05:38:11,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:11,736 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:38:11,874 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2025-01-09 05:38:11,905 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2025-01-09 05:38:11,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:11,917 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:38:11,930 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2025-01-09 05:38:11,943 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2025-01-09 05:38:11,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:38:11,958 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:38:11,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11 WrapperNode [2025-01-09 05:38:11,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:38:11,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:11,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:38:11,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:38:11,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:11,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:11,990 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2025-01-09 05:38:11,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:38:11,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:38:11,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:38:11,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:38:11,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:11,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,015 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-01-09 05:38:12,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,024 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:38:12,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:38:12,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:38:12,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:38:12,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (1/1) ... [2025-01-09 05:38:12,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:38:12,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:38:12,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 05:38:12,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 05:38:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:38:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 05:38:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 05:38:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:38:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:38:12,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 05:38:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 05:38:12,147 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:38:12,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:38:21,760 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2025-01-09 05:38:21,760 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:38:21,766 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:38:21,767 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:38:21,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:21 BoogieIcfgContainer [2025-01-09 05:38:21,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:38:21,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:38:21,769 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:38:21,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:38:21,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:38:11" (1/3) ... [2025-01-09 05:38:21,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ff019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:21, skipping insertion in model container [2025-01-09 05:38:21,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:38:11" (2/3) ... [2025-01-09 05:38:21,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ff019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:38:21, skipping insertion in model container [2025-01-09 05:38:21,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:21" (3/3) ... [2025-01-09 05:38:21,774 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_5.i [2025-01-09 05:38:21,784 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:38:21,785 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_5.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:38:21,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:38:21,824 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;@674a73d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:38:21,824 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:38:21,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 05:38:21,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:38:21,830 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:38:21,831 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:38:21,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:38:21,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:38:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash 841157774, now seen corresponding path program 1 times [2025-01-09 05:38:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:38:21,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104989214] [2025-01-09 05:38:21,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:38:21,842 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 [2025-01-09 05:38:21,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:38:21,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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) [2025-01-09 05:38:21,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2025-01-09 05:38:21,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:39:02,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:39:02,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:39:02,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:39:02,228 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:39:02,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:39:27,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:39:27,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:39:27,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:39:27,099 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 05:39:27,100 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:39:27,101 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:39:27,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:39:27,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2025-01-09 05:39:27,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2025-01-09 05:39:27,309 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 05:39:27,322 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:39:27,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:39:27 BoogieIcfgContainer [2025-01-09 05:39:27,324 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:39:27,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:39:27,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:39:27,325 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:39:27,325 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:38:21" (3/4) ... [2025-01-09 05:39:27,326 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 05:39:27,349 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 11. [2025-01-09 05:39:27,381 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 05:39:27,381 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 05:39:27,381 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:39:27,382 INFO L158 Benchmark]: Toolchain (without parser) took 75672.10ms. Allocated memory is still 83.9MB. Free memory was 59.8MB in the beginning and 50.6MB in the end (delta: 9.2MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2025-01-09 05:39:27,382 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:39:27,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.70ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 46.9MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:39:27,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.88ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:39:27,383 INFO L158 Benchmark]: Boogie Preprocessor took 46.13ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:39:27,383 INFO L158 Benchmark]: RCFGBuilder took 9729.09ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 30.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:39:27,383 INFO L158 Benchmark]: TraceAbstraction took 65555.34ms. Allocated memory is still 83.9MB. Free memory was 30.3MB in the beginning and 55.5MB in the end (delta: -25.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:39:27,383 INFO L158 Benchmark]: Witness Printer took 56.78ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 50.6MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:39:27,384 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.70ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 46.9MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.88ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.13ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 9729.09ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 30.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 65555.34ms. Allocated memory is still 83.9MB. Free memory was 30.3MB in the beginning and 55.5MB in the end (delta: -25.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.78ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 50.6MB in the end (delta: 4.9MB). 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 - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\result=-0.7294540405273438] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.684955894947052] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) [L109] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 65.5s, OverallIterations: 1, TraceHistogramMax: 1, 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=32occurred 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, 40.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-01-09 05:39:27,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE