./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c --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/float-benchs/sin_interpolated_index-2.c -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 931f20aaadf1f22a94d365ccbff31bc47a294b716a2b466ce4fd13d5ed4f85ab --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:55:45,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:55:45,600 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 00:55:45,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:55:45,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:55:45,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:55:45,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:55:45,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:55:45,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:55:45,618 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:55:45,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:55:45,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:55:45,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:55:45,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:55:45,618 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:55:45,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:55:45,619 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:55:45,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:55:45,620 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:55:45,620 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:55:45,620 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:55:45,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:55:45,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:55:45,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:55:45,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:55:45,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:55:45,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 00:55:45,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 00:55:45,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:55:45,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:55:45,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:55:45,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:55:45,622 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 -> 931f20aaadf1f22a94d365ccbff31bc47a294b716a2b466ce4fd13d5ed4f85ab [2025-01-09 00:55:45,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:55:45,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:55:45,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:55:45,792 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:55:45,792 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:55:45,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c [2025-01-09 00:55:46,858 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4bb1b17c3/8f00f6866b1a4abbb20691ff33b952de/FLAG37f92c2a8 [2025-01-09 00:55:47,118 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:55:47,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c [2025-01-09 00:55:47,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4bb1b17c3/8f00f6866b1a4abbb20691ff33b952de/FLAG37f92c2a8 [2025-01-09 00:55:47,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4bb1b17c3/8f00f6866b1a4abbb20691ff33b952de [2025-01-09 00:55:47,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:55:47,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:55:47,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:55:47,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:55:47,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:55:47,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12564b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47, skipping insertion in model container [2025-01-09 00:55:47,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:55:47,273 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/float-benchs/sin_interpolated_index-2.c[716,729] [2025-01-09 00:55:47,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:55:47,359 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:55:47,368 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/float-benchs/sin_interpolated_index-2.c[716,729] [2025-01-09 00:55:47,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:55:47,429 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:55:47,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47 WrapperNode [2025-01-09 00:55:47,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:55:47,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:55:47,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:55:47,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:55:47,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,487 INFO L138 Inliner]: procedures = 21, calls = 381, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 422 [2025-01-09 00:55:47,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:55:47,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:55:47,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:55:47,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:55:47,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,515 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-01-09 00:55:47,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,537 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:55:47,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:55:47,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:55:47,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:55:47,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (1/1) ... [2025-01-09 00:55:47,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:55:47,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:47,576 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 00:55:47,583 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 00:55:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:55:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2025-01-09 00:55:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2025-01-09 00:55:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 00:55:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2025-01-09 00:55:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2025-01-09 00:55:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-01-09 00:55:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2025-01-09 00:55:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2025-01-09 00:55:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-01-09 00:55:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:55:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:55:47,656 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:55:47,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:55:54,537 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-01-09 00:55:54,538 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:55:54,543 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:55:54,544 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:55:54,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:55:54 BoogieIcfgContainer [2025-01-09 00:55:54,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:55:54,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:55:54,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:55:54,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:55:54,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:55:47" (1/3) ... [2025-01-09 00:55:54,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e39d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:55:54, skipping insertion in model container [2025-01-09 00:55:54,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:47" (2/3) ... [2025-01-09 00:55:54,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e39d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:55:54, skipping insertion in model container [2025-01-09 00:55:54,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:55:54" (3/3) ... [2025-01-09 00:55:54,550 INFO L128 eAbstractionObserver]: Analyzing ICFG sin_interpolated_index-2.c [2025-01-09 00:55:54,559 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:55:54,560 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sin_interpolated_index-2.c that has 4 procedures, 36 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:55:54,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:55:54,600 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;@2e364baa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:55:54,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:55:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-09 00:55:54,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 00:55:54,606 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:54,607 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:55:54,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting SIN_0_180Err0ASSERT_VIOLATIONERROR_FUNCTION === [SIN_0_180Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:54,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:54,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1232297392, now seen corresponding path program 1 times [2025-01-09 00:55:54,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:54,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026981438] [2025-01-09 00:55:54,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:55:54,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms