/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-99.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:27:57,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:27:57,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 12:27:57,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:27:57,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:27:57,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:27:57,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:27:57,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:27:57,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:27:57,550 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:27:57,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:27:57,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:27:57,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:27:57,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:27:57,551 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:27:57,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:27:57,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:27:57,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:27:57,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:27:57,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:27:57,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:27:57,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:27:57,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:27:57,555 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:27:57,555 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:27:57,556 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:27:57,556 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:27:57,556 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:27:57,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:27:57,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:27:57,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:27:57,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:27:57,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:27:57,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:27:57,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:27:57,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:27:57,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:27:57,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:27:57,558 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:27:57,558 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:27:57,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:27:57,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:27:57,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:27:57,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:27:57,560 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:27:57,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:27:57,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:27:57,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:27:57,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:27:57,789 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:27:57,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-99.i [2024-11-03 12:27:59,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:27:59,273 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:27:59,273 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-99.i [2024-11-03 12:27:59,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee1775a7/0c9e3f2566b740548b6c91cf958fbda5/FLAG7141ec53b [2024-11-03 12:27:59,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee1775a7/0c9e3f2566b740548b6c91cf958fbda5 [2024-11-03 12:27:59,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:27:59,677 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:27:59,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:27:59,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:27:59,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:27:59,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:27:59,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278b6b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59, skipping insertion in model container [2024-11-03 12:27:59,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:27:59,706 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:27:59,841 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-99.i[916,929] [2024-11-03 12:27:59,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:27:59,896 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:27:59,907 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-99.i[916,929] [2024-11-03 12:27:59,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:27:59,936 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:27:59,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59 WrapperNode [2024-11-03 12:27:59,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:27:59,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:27:59,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:27:59,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:27:59,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:27:59,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:27:59,967 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2024-11-03 12:27:59,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:27:59,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:27:59,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:27:59,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:27:59,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:27:59,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:27:59,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,002 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 12:28:00,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:28:00,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:28:00,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:28:00,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:28:00,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (1/1) ... [2024-11-03 12:28:00,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:28:00,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:28:00,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-03 12:28:00,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-03 12:28:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:28:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:28:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:28:00,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:28:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:28:00,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:28:00,161 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:28:00,163 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:28:00,438 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-03 12:28:00,438 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:28:00,451 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:28:00,452 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:28:00,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:28:00 BoogieIcfgContainer [2024-11-03 12:28:00,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:28:00,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:28:00,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:28:00,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:28:00,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:27:59" (1/3) ... [2024-11-03 12:28:00,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c21f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:28:00, skipping insertion in model container [2024-11-03 12:28:00,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:59" (2/3) ... [2024-11-03 12:28:00,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c21f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:28:00, skipping insertion in model container [2024-11-03 12:28:00,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:28:00" (3/3) ... [2024-11-03 12:28:00,460 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-99.i [2024-11-03 12:28:00,472 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:28:00,472 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:28:00,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:28:00,536 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;@3e8aa127, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:28:00,537 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:28:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-03 12:28:00,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-03 12:28:00,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:28:00,556 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:28:00,556 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:28:00,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:28:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1390334263, now seen corresponding path program 1 times [2024-11-03 12:28:00,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:28:00,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999136431] [2024-11-03 12:28:00,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:28:00,569 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:28:00,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:28:00,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:28:00,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:28:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:28:00,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:28:00,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:28:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-11-03 12:28:00,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:28:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-11-03 12:28:00,974 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:28:00,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999136431] [2024-11-03 12:28:00,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1999136431] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:28:00,975 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:28:00,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:28:00,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496511329] [2024-11-03 12:28:00,977 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:28:00,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:28:00,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:28:01,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:28:01,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:28:01,030 INFO L87 Difference]: Start difference. First operand has 62 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-03 12:28:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:28:01,050 INFO L93 Difference]: Finished difference Result 117 states and 207 transitions. [2024-11-03 12:28:01,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:28:01,052 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) Word has length 150 [2024-11-03 12:28:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:28:01,057 INFO L225 Difference]: With dead ends: 117 [2024-11-03 12:28:01,057 INFO L226 Difference]: Without dead ends: 58 [2024-11-03 12:28:01,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:28:01,062 INFO L432 NwaCegarLoop]: 87 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, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:28:01,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:28:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-03 12:28:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-03 12:28:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-03 12:28:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 87 transitions. [2024-11-03 12:28:01,097 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 87 transitions. Word has length 150 [2024-11-03 12:28:01,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:28:01,098 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 87 transitions. [2024-11-03 12:28:01,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-03 12:28:01,099 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 87 transitions. [2024-11-03 12:28:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-03 12:28:01,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:28:01,101 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:28:01,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:28:01,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:28:01,304 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:28:01,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:28:01,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2143648053, now seen corresponding path program 1 times [2024-11-03 12:28:01,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:28:01,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001920959] [2024-11-03 12:28:01,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:28:01,306 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:28:01,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:28:01,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:28:01,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:28:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:28:01,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-03 12:28:01,434 INFO L278 TraceCheckSpWp]: Computing forward predicates...