./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_1+newton_1_8.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_1+newton_1_8.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 5ae61279460707eb31ef5192dbacafd71ee43f81800041bfc80550692238d3f1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:29:06,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:29:07,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:29:07,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:29:07,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:29:07,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:29:07,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:29:07,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:29:07,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:29:07,059 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:29:07,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:29:07,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:29:07,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:29:07,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:29:07,060 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:29:07,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:29:07,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:29:07,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:29:07,062 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:29:07,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:29:07,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:29:07,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:29:07,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:29:07,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:29:07,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:29:07,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:29:07,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:29:07,063 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 -> 5ae61279460707eb31ef5192dbacafd71ee43f81800041bfc80550692238d3f1 [2025-01-09 05:29:07,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:29:07,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:29:07,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:29:07,310 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:29:07,311 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:29:07,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_1_8.i [2025-01-09 05:29:08,505 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d02d7c8d3/abe17a79e0a648d19c75e69a1237ac9f/FLAG84583f989 [2025-01-09 05:29:08,810 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:29:08,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_8.i [2025-01-09 05:29:08,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d02d7c8d3/abe17a79e0a648d19c75e69a1237ac9f/FLAG84583f989 [2025-01-09 05:29:09,104 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d02d7c8d3/abe17a79e0a648d19c75e69a1237ac9f [2025-01-09 05:29:09,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:29:09,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:29:09,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:29:09,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:29:09,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:29:09,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fadb9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09, skipping insertion in model container [2025-01-09 05:29:09,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:29:09,224 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_1+newton_1_8.i[1226,1239] [2025-01-09 05:29:09,252 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_1+newton_1_8.i[2786,2799] [2025-01-09 05:29:09,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:29:09,270 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:29:09,279 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_1+newton_1_8.i[1226,1239] [2025-01-09 05:29:09,296 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_1+newton_1_8.i[2786,2799] [2025-01-09 05:29:09,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:29:09,309 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:29:09,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09 WrapperNode [2025-01-09 05:29:09,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:29:09,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:29:09,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:29:09,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:29:09,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,344 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 84 [2025-01-09 05:29:09,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:29:09,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:29:09,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:29:09,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:29:09,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,370 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 05:29:09,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,373 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:29:09,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:29:09,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:29:09,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:29:09,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 05:29:09,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:29:09,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:29:09,402 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 05:29:09,410 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 05:29:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:29:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:29:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 05:29:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:29:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:29:09,464 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:29:09,465 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:29:09,603 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2025-01-09 05:29:09,604 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:29:09,610 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:29:09,610 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:29:09,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:09 BoogieIcfgContainer [2025-01-09 05:29:09,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:29:09,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:29:09,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:29:09,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:29:09,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:29:09" (1/3) ... [2025-01-09 05:29:09,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7476f740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:29:09, skipping insertion in model container [2025-01-09 05:29:09,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (2/3) ... [2025-01-09 05:29:09,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7476f740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:29:09, skipping insertion in model container [2025-01-09 05:29:09,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:09" (3/3) ... [2025-01-09 05:29:09,617 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_8.i [2025-01-09 05:29:09,626 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:29:09,627 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_1+newton_1_8.i that has 1 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:29:09,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:29:09,664 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;@1b65ac76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:29:09,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:29:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:09,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:29:09,669 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:29:09,670 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:29:09,670 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:29:09,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:29:09,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1676893550, now seen corresponding path program 1 times [2025-01-09 05:29:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:29:09,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373774595] [2025-01-09 05:29:09,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:29:09,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:29:09,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:29:09,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:29:09,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:29:09,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:29:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:29:09,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:29:09,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373774595] [2025-01-09 05:29:09,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373774595] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:29:09,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:29:09,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:29:09,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681770087] [2025-01-09 05:29:09,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:29:09,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 05:29:09,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:29:09,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 05:29:09,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:29:09,781 INFO L87 Difference]: Start difference. First operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:09,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:29:09,790 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2025-01-09 05:29:09,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 05:29:09,791 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-09 05:29:09,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:29:09,798 INFO L225 Difference]: With dead ends: 40 [2025-01-09 05:29:09,798 INFO L226 Difference]: Without dead ends: 18 [2025-01-09 05:29:09,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:29:09,804 INFO L435 NwaCegarLoop]: 30 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, 30 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 [2025-01-09 05:29:09,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:29:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-09 05:29:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-09 05:29:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:09,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-01-09 05:29:09,830 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2025-01-09 05:29:09,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:29:09,830 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-01-09 05:29:09,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:09,830 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-01-09 05:29:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:29:09,834 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:29:09,834 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:29:09,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:29:09,835 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:29:09,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:29:09,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1619635248, now seen corresponding path program 1 times [2025-01-09 05:29:09,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:29:09,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613601572] [2025-01-09 05:29:09,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:29:09,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:29:09,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:29:09,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:29:09,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:29:09,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:29:09,855 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:29:09,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:29:09,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:29:09,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:29:09,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:29:09,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 05:29:09,877 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:29:09,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:29:09,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:29:09,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:29:09,882 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 05:29:09,890 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:29:09,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:29:09 BoogieIcfgContainer [2025-01-09 05:29:09,892 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:29:09,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:29:09,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:29:09,893 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:29:09,894 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:09" (3/4) ... [2025-01-09 05:29:09,895 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 05:29:09,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:29:09,896 INFO L158 Benchmark]: Toolchain (without parser) took 789.09ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 63.7MB in the end (delta: 48.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-09 05:29:09,896 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:29:09,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.61ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 100.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:29:09,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.53ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 99.1MB in the end (delta: 882.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:29:09,897 INFO L158 Benchmark]: Boogie Preprocessor took 29.46ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:29:09,900 INFO L158 Benchmark]: RCFGBuilder took 232.46ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 84.1MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:29:09,901 INFO L158 Benchmark]: TraceAbstraction took 280.37ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 63.7MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 05:29:09,901 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 142.6MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:29:09,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.61ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 100.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.53ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 99.1MB in the end (delta: 882.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.46ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 232.46ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 84.1MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 280.37ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 63.7MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 142.6MB. Free memory is still 63.7MB. 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] 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 1 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 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, 30 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 05:29:09,917 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 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_1+newton_1_8.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 5ae61279460707eb31ef5192dbacafd71ee43f81800041bfc80550692238d3f1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:29:11,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:29:11,899 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 05:29:11,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:29:11,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:29:11,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:29:11,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:29:11,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:29:11,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:29:11,932 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:29:11,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:29:11,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:29:11,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:29:11,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:29:11,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:29:11,934 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:29:11,935 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:29:11,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:29:11,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:29:11,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:29:11,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:29:11,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:29:11,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:29:11,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 05:29:11,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:29:11,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:29:11,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:29:11,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:29:11,937 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 -> 5ae61279460707eb31ef5192dbacafd71ee43f81800041bfc80550692238d3f1 [2025-01-09 05:29:12,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:29:12,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:29:12,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:29:12,222 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:29:12,222 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:29:12,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_1_8.i [2025-01-09 05:29:13,420 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9e7a78fe2/391c21ac182749ae94c2a38708f71bbd/FLAG3c0658ae3 [2025-01-09 05:29:13,632 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:29:13,632 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_8.i [2025-01-09 05:29:13,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9e7a78fe2/391c21ac182749ae94c2a38708f71bbd/FLAG3c0658ae3 [2025-01-09 05:29:13,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9e7a78fe2/391c21ac182749ae94c2a38708f71bbd [2025-01-09 05:29:13,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:29:13,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:29:13,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:29:13,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:29:13,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:29:13,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cabd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13, skipping insertion in model container [2025-01-09 05:29:13,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:29:13,795 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_1+newton_1_8.i[1226,1239] [2025-01-09 05:29:13,823 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_1+newton_1_8.i[2786,2799] [2025-01-09 05:29:13,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:29:13,836 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:29:13,847 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_1+newton_1_8.i[1226,1239] [2025-01-09 05:29:13,858 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_1+newton_1_8.i[2786,2799] [2025-01-09 05:29:13,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:29:13,876 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:29:13,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13 WrapperNode [2025-01-09 05:29:13,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:29:13,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:29:13,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:29:13,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:29:13,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,904 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 79 [2025-01-09 05:29:13,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:29:13,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:29:13,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:29:13,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:29:13,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,930 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 05:29:13,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,938 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:29:13,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:29:13,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:29:13,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:29:13,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (1/1) ... [2025-01-09 05:29:13,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:29:13,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:29:13,994 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 05:29:14,012 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 05:29:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:29:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 05:29:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 05:29:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:29:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:29:14,097 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:29:14,098 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:29:24,229 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2025-01-09 05:29:24,229 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:29:24,238 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:29:24,239 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 05:29:24,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:24 BoogieIcfgContainer [2025-01-09 05:29:24,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:29:24,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:29:24,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:29:24,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:29:24,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:29:13" (1/3) ... [2025-01-09 05:29:24,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee1325c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:29:24, skipping insertion in model container [2025-01-09 05:29:24,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:13" (2/3) ... [2025-01-09 05:29:24,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee1325c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:29:24, skipping insertion in model container [2025-01-09 05:29:24,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:24" (3/3) ... [2025-01-09 05:29:24,249 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_8.i [2025-01-09 05:29:24,259 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:29:24,261 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_1+newton_1_8.i that has 1 procedures, 26 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-09 05:29:24,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:29:24,312 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;@44828ccc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:29:24,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:29:24,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:24,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:29:24,320 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:29:24,320 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:29:24,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:29:24,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:29:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1676893550, now seen corresponding path program 1 times [2025-01-09 05:29:24,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:29:24,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494767771] [2025-01-09 05:29:24,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:29:24,335 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 05:29:24,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:29:24,337 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 05:29:24,341 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 05:29:24,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:29:25,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:29:25,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:29:25,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:29:25,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 05:29:25,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 05:29:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:29:25,324 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 05:29:25,325 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 05:29:25,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494767771] [2025-01-09 05:29:25,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494767771] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:29:25,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:29:25,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 05:29:25,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903871031] [2025-01-09 05:29:25,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:29:25,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 05:29:25,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 05:29:25,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 05:29:25,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:29:25,343 INFO L87 Difference]: Start difference. First operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:25,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:29:25,351 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2025-01-09 05:29:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 05:29:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-09 05:29:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:29:25,357 INFO L225 Difference]: With dead ends: 40 [2025-01-09 05:29:25,357 INFO L226 Difference]: Without dead ends: 18 [2025-01-09 05:29:25,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 05:29:25,361 INFO L435 NwaCegarLoop]: 30 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, 30 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 [2025-01-09 05:29:25,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:29:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-09 05:29:25,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-09 05:29:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-01-09 05:29:25,382 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2025-01-09 05:29:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:29:25,382 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-01-09 05:29:25,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 05:29:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-01-09 05:29:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 05:29:25,383 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:29:25,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:29:25,409 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 05:29:25,583 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 05:29:25,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:29:25,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:29:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1619635248, now seen corresponding path program 1 times [2025-01-09 05:29:25,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 05:29:25,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12921862] [2025-01-09 05:29:25,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:29:25,586 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 05:29:25,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 05:29:25,589 INFO L229 MonitoredProcess]: Starting monitored process 3 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 05:29:25,590 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 (3)] Waiting until timeout for monitored process [2025-01-09 05:29:25,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:29:32,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:29:32,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:29:32,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:29:32,681 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 05:29:32,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 05:29:36,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 05:29:36,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:29:36,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 05:29:36,876 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 05:29:36,876 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 05:29:36,877 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-09 05:29:36,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-09 05:29:36,920 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 (3)] Ended with exit code 0 [2025-01-09 05:29:37,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 05:29:37,086 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 05:29:37,102 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 05:29:37,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:29:37 BoogieIcfgContainer [2025-01-09 05:29:37,104 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 05:29:37,104 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 05:29:37,104 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 05:29:37,104 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 05:29:37,106 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:24" (3/4) ... [2025-01-09 05:29:37,107 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 05:29:37,138 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 11. [2025-01-09 05:29:37,182 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 05:29:37,182 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 05:29:37,182 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 05:29:37,183 INFO L158 Benchmark]: Toolchain (without parser) took 23524.87ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 38.1MB in the end (delta: 54.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 05:29:37,184 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:29:37,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.18ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.1MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:29:37,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.46ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:29:37,186 INFO L158 Benchmark]: Boogie Preprocessor took 44.43ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:29:37,186 INFO L158 Benchmark]: RCFGBuilder took 10285.73ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 64.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 05:29:37,187 INFO L158 Benchmark]: TraceAbstraction took 12863.09ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 43.5MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 05:29:37,187 INFO L158 Benchmark]: Witness Printer took 77.96ms. Allocated memory is still 117.4MB. Free memory was 43.2MB in the beginning and 38.1MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 05:29:37,188 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.18ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.1MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.46ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.43ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 10285.73ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 64.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12863.09ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 43.5MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 77.96ms. Allocated memory is still 117.4MB. Free memory was 43.2MB in the beginning and 38.1MB in the end (delta: 5.2MB). 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: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L93] CALL, EXPR f(IN) [L80] 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=-0.80507493019104] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.5953545570373535] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] 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 1 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 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, 30 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 8.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 05:29:37,274 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE