/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-35.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:19:25,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:19:25,824 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 12:19:25,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:19:25,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:19:25,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:19:25,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:19:25,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:19:25,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:19:25,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:19:25,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:19:25,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:19:25,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:19:25,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:19:25,870 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:19:25,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:19:25,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:19:25,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:19:25,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:19:25,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:19:25,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:19:25,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:19:25,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:19:25,879 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:19:25,879 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:19:25,879 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:19:25,880 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:19:25,880 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:19:25,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:19:25,880 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:19:25,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:19:25,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:19:25,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:19:25,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:19:25,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:19:25,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:19:25,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:19:25,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:19:25,883 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:19:25,884 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:19:25,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:19:25,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:19:25,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:19:25,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:19:25,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:19:26,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:19:26,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:19:26,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:19:26,154 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:19:26,154 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:19:26,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-03 12:19:27,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:19:27,930 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:19:27,930 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-03 12:19:27,939 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03c0a0e3/b4e6881d7b134954ab36c11176332fa1/FLAG58baa51e8 [2024-11-03 12:19:27,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03c0a0e3/b4e6881d7b134954ab36c11176332fa1 [2024-11-03 12:19:27,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:19:27,957 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:19:27,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:19:27,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:19:27,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:19:27,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:19:27" (1/1) ... [2024-11-03 12:19:27,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256904f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:27, skipping insertion in model container [2024-11-03 12:19:27,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:19:27" (1/1) ... [2024-11-03 12:19:28,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:19:28,161 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-35.i[916,929] [2024-11-03 12:19:28,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:19:28,219 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:19:28,230 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-35.i[916,929] [2024-11-03 12:19:28,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:19:28,271 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:19:28,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28 WrapperNode [2024-11-03 12:19:28,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:19:28,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:19:28,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:19:28,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:19:28,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,288 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,310 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2024-11-03 12:19:28,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:19:28,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:19:28,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:19:28,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:19:28,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,325 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,338 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 12:19:28,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:19:28,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:19:28,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:19:28,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:19:28,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (1/1) ... [2024-11-03 12:19:28,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:19:28,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:19:28,394 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 12:19:28,399 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 12:19:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:19:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:19:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:19:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:19:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:19:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:19:28,490 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:19:28,492 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:19:28,747 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-03 12:19:28,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:19:28,761 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:19:28,762 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:19:28,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:19:28 BoogieIcfgContainer [2024-11-03 12:19:28,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:19:28,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:19:28,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:19:28,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:19:28,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:19:27" (1/3) ... [2024-11-03 12:19:28,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d599bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:19:28, skipping insertion in model container [2024-11-03 12:19:28,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:28" (2/3) ... [2024-11-03 12:19:28,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d599bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:19:28, skipping insertion in model container [2024-11-03 12:19:28,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:19:28" (3/3) ... [2024-11-03 12:19:28,771 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-03 12:19:28,787 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:19:28,787 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:19:28,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:19:28,861 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;@6119dd54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:19:28,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:19:28,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-03 12:19:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-03 12:19:28,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:19:28,876 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 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 12:19:28,877 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:19:28,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:19:28,882 INFO L85 PathProgramCache]: Analyzing trace with hash 799744561, now seen corresponding path program 1 times [2024-11-03 12:19:28,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:19:28,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051328900] [2024-11-03 12:19:28,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:19:28,895 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:19:28,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:19:28,897 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 12:19:28,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:19:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:19:29,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:19:29,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:19:29,153 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-03 12:19:29,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:19:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-03 12:19:29,304 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:19:29,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051328900] [2024-11-03 12:19:29,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2051328900] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:19:29,309 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:19:29,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:19:29,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792048117] [2024-11-03 12:19:29,312 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:19:29,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:19:29,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:19:29,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:19:29,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:19:29,368 INFO L87 Difference]: Start difference. First operand has 56 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-03 12:19:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:19:29,403 INFO L93 Difference]: Finished difference Result 105 states and 182 transitions. [2024-11-03 12:19:29,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:19:29,408 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, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-11-03 12:19:29,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:19:29,413 INFO L225 Difference]: With dead ends: 105 [2024-11-03 12:19:29,413 INFO L226 Difference]: Without dead ends: 52 [2024-11-03 12:19:29,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 248 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 12:19:29,420 INFO L432 NwaCegarLoop]: 77 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, 77 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 12:19:29,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:19:29,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-03 12:19:29,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-03 12:19:29,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-03 12:19:29,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2024-11-03 12:19:29,463 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 125 [2024-11-03 12:19:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:19:29,463 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2024-11-03 12:19:29,464 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, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-03 12:19:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2024-11-03 12:19:29,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-03 12:19:29,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:19:29,467 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 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 12:19:29,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:19:29,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:19:29,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:19:29,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:19:29,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2091026993, now seen corresponding path program 1 times [2024-11-03 12:19:29,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:19:29,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536177853] [2024-11-03 12:19:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:19:29,673 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:19:29,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:19:29,675 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 12:19:29,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:19:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:19:29,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 12:19:29,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:19:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 327 proven. 15 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-03 12:19:30,007 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:19:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 42 proven. 15 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-03 12:19:30,236 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:19:30,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536177853] [2024-11-03 12:19:30,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1536177853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:19:30,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:19:30,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-03 12:19:30,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170472393] [2024-11-03 12:19:30,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:19:30,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:19:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:19:30,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:19:30,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:19:30,241 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 12:19:30,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:19:30,786 INFO L93 Difference]: Finished difference Result 161 states and 233 transitions. [2024-11-03 12:19:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-03 12:19:30,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 125 [2024-11-03 12:19:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:19:30,790 INFO L225 Difference]: With dead ends: 161 [2024-11-03 12:19:30,790 INFO L226 Difference]: Without dead ends: 112 [2024-11-03 12:19:30,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-11-03 12:19:30,793 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 83 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 12:19:30,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 222 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 12:19:30,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-03 12:19:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 58. [2024-11-03 12:19:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-03 12:19:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 82 transitions. [2024-11-03 12:19:30,815 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 82 transitions. Word has length 125 [2024-11-03 12:19:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:19:30,816 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 82 transitions. [2024-11-03 12:19:30,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 12:19:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 82 transitions. [2024-11-03 12:19:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-03 12:19:30,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:19:30,818 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 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 12:19:30,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:19:31,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:19:31,021 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:19:31,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:19:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2146682001, now seen corresponding path program 1 times [2024-11-03 12:19:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:19:31,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371908132] [2024-11-03 12:19:31,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:19:31,023 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:19:31,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:19:31,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:19:31,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:19:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:19:31,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-03 12:19:31,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:19:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 369 proven. 12 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-03 12:19:55,970 INFO L311 TraceCheckSpWp]: Computing backward predicates...