/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-48.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:21:11,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:21:11,278 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 12:21:11,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:21:11,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:21:11,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:21:11,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:21:11,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:21:11,328 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:21:11,328 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:21:11,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:21:11,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:21:11,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:21:11,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:21:11,330 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:21:11,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:21:11,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:21:11,331 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:21:11,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:21:11,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:21:11,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:21:11,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:21:11,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:21:11,334 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:21:11,334 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:21:11,335 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:21:11,335 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:21:11,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:21:11,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:21:11,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:21:11,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:21:11,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:21:11,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:21:11,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:21:11,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:21:11,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:21:11,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:21:11,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:21:11,346 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:21:11,346 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:21:11,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:21:11,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:21:11,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:21:11,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:21:11,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:21:11,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:21:11,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:21:11,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:21:11,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:21:11,623 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:21:11,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-48.i [2024-11-03 12:21:13,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:21:13,458 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:21:13,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-48.i [2024-11-03 12:21:13,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df587724d/bffa4d8ed94e44b0ad93062f5e5a01a7/FLAG1d288ccf6 [2024-11-03 12:21:13,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df587724d/bffa4d8ed94e44b0ad93062f5e5a01a7 [2024-11-03 12:21:13,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:21:13,486 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:21:13,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:21:13,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:21:13,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:21:13,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51eeea85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13, skipping insertion in model container [2024-11-03 12:21:13,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:21:13,705 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-48.i[916,929] [2024-11-03 12:21:13,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:21:13,767 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:21:13,777 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-48.i[916,929] [2024-11-03 12:21:13,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:21:13,821 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:21:13,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13 WrapperNode [2024-11-03 12:21:13,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:21:13,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:21:13,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:21:13,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:21:13,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,867 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136 [2024-11-03 12:21:13,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:21:13,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:21:13,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:21:13,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:21:13,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,902 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 12:21:13,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:21:13,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:21:13,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:21:13,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:21:13,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (1/1) ... [2024-11-03 12:21:13,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:21:13,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:21:13,988 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 12:21:13,995 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 12:21:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:21:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:21:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:21:14,094 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:21:14,097 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:21:17,205 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 12:21:17,205 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:21:17,223 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:21:17,224 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:21:17,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:21:17 BoogieIcfgContainer [2024-11-03 12:21:17,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:21:17,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:21:17,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:21:17,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:21:17,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:21:13" (1/3) ... [2024-11-03 12:21:17,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4f8c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:21:17, skipping insertion in model container [2024-11-03 12:21:17,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:21:13" (2/3) ... [2024-11-03 12:21:17,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4f8c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:21:17, skipping insertion in model container [2024-11-03 12:21:17,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:21:17" (3/3) ... [2024-11-03 12:21:17,234 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-48.i [2024-11-03 12:21:17,250 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:21:17,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:21:17,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:21:17,336 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;@55e3a0e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:21:17,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:21:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-03 12:21:17,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-03 12:21:17,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:21:17,362 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 1, 1, 1] [2024-11-03 12:21:17,362 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:21:17,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:21:17,368 INFO L85 PathProgramCache]: Analyzing trace with hash -403830734, now seen corresponding path program 1 times [2024-11-03 12:21:17,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:21:17,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221458400] [2024-11-03 12:21:17,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:21:17,378 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:21:17,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:21:17,380 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 12:21:17,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:21:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:21:17,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 12:21:17,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:21:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-03 12:21:17,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:21:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-03 12:21:18,281 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:21:18,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221458400] [2024-11-03 12:21:18,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1221458400] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:21:18,282 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:21:18,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2024-11-03 12:21:18,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224227664] [2024-11-03 12:21:18,285 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:21:18,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 12:21:18,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:21:18,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 12:21:18,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-03 12:21:18,324 INFO L87 Difference]: Start difference. First operand has 64 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-03 12:21:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:21:19,644 INFO L93 Difference]: Finished difference Result 257 states and 474 transitions. [2024-11-03 12:21:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-03 12:21:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 156 [2024-11-03 12:21:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:21:19,657 INFO L225 Difference]: With dead ends: 257 [2024-11-03 12:21:19,657 INFO L226 Difference]: Without dead ends: 196 [2024-11-03 12:21:19,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2024-11-03 12:21:19,665 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 263 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 12:21:19,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 212 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 12:21:19,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-03 12:21:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 65. [2024-11-03 12:21:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-03 12:21:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2024-11-03 12:21:19,739 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 156 [2024-11-03 12:21:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:21:19,740 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2024-11-03 12:21:19,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-03 12:21:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2024-11-03 12:21:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-03 12:21:19,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:21:19,748 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 1, 1, 1] [2024-11-03 12:21:19,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:21:19,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:21:19,952 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:21:19,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:21:19,953 INFO L85 PathProgramCache]: Analyzing trace with hash -346572432, now seen corresponding path program 1 times [2024-11-03 12:21:19,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:21:19,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196493089] [2024-11-03 12:21:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:21:19,954 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:21:19,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:21:19,955 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 12:21:19,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:21:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:21:20,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-03 12:21:20,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:21:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-03 12:21:21,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:21:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-03 12:21:24,758 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:21:24,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196493089] [2024-11-03 12:21:24,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [196493089] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:21:24,759 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:21:24,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2024-11-03 12:21:24,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580966024] [2024-11-03 12:21:24,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:21:24,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-03 12:21:24,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:21:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-03 12:21:24,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-03 12:21:24,765 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-03 12:21:27,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 12:21:28,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 12:21:32,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:21:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:21:34,053 INFO L93 Difference]: Finished difference Result 236 states and 334 transitions. [2024-11-03 12:21:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 12:21:34,055 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 156 [2024-11-03 12:21:34,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:21:34,057 INFO L225 Difference]: With dead ends: 236 [2024-11-03 12:21:34,058 INFO L226 Difference]: Without dead ends: 174 [2024-11-03 12:21:34,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2024-11-03 12:21:34,064 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 148 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-03 12:21:34,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-03 12:21:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-03 12:21:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 134. [2024-11-03 12:21:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 75 states have (on average 1.1066666666666667) internal successors, (83), 75 states have internal predecessors, (83), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-03 12:21:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 187 transitions. [2024-11-03 12:21:34,113 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 187 transitions. Word has length 156 [2024-11-03 12:21:34,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:21:34,115 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 187 transitions. [2024-11-03 12:21:34,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-03 12:21:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 187 transitions. [2024-11-03 12:21:34,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-03 12:21:34,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:21:34,119 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 1, 1, 1, 1] [2024-11-03 12:21:34,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:21:34,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:21:34,320 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:21:34,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:21:34,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1907443250, now seen corresponding path program 1 times [2024-11-03 12:21:34,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:21:34,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802950360] [2024-11-03 12:21:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:21:34,322 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:21:34,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:21:34,325 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 12:21:34,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:21:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:21:34,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 12:21:34,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:21:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-03 12:21:34,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:21:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-03 12:21:35,139 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:21:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802950360] [2024-11-03 12:21:35,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [802950360] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:21:35,140 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:21:35,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-03 12:21:35,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033318307] [2024-11-03 12:21:35,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:21:35,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:21:35,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:21:35,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:21:35,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:21:35,148 INFO L87 Difference]: Start difference. First operand 134 states and 187 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-03 12:21:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:21:36,718 INFO L93 Difference]: Finished difference Result 203 states and 281 transitions. [2024-11-03 12:21:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 12:21:36,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 157 [2024-11-03 12:21:36,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:21:36,723 INFO L225 Difference]: With dead ends: 203 [2024-11-03 12:21:36,723 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 12:21:36,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-11-03 12:21:36,726 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 116 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:21:36,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 241 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-03 12:21:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 12:21:36,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 12:21:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 12:21:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 12:21:36,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2024-11-03 12:21:36,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:21:36,732 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 12:21:36,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-03 12:21:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 12:21:36,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 12:21:36,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 12:21:36,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:21:36,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:21:36,944 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 12:21:36,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 12:21:41,295 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 12:21:41,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 12:21:41 BoogieIcfgContainer [2024-11-03 12:21:41,322 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 12:21:41,323 INFO L158 Benchmark]: Toolchain (without parser) took 27837.11ms. Allocated memory was 189.8MB in the beginning and 348.1MB in the end (delta: 158.3MB). Free memory was 146.7MB in the beginning and 192.3MB in the end (delta: -45.6MB). Peak memory consumption was 189.6MB. Max. memory is 8.0GB. [2024-11-03 12:21:41,324 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 189.8MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 12:21:41,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.23ms. Allocated memory is still 189.8MB. Free memory was 146.7MB in the beginning and 131.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 12:21:41,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.94ms. Allocated memory is still 189.8MB. Free memory was 131.3MB in the beginning and 129.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:21:41,324 INFO L158 Benchmark]: Boogie Preprocessor took 58.63ms. Allocated memory is still 189.8MB. Free memory was 129.2MB in the beginning and 126.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 12:21:41,325 INFO L158 Benchmark]: RCFGBuilder took 3290.74ms. Allocated memory is still 189.8MB. Free memory was 126.4MB in the beginning and 109.3MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-03 12:21:41,325 INFO L158 Benchmark]: TraceAbstraction took 24095.73ms. Allocated memory was 189.8MB in the beginning and 348.1MB in the end (delta: 158.3MB). Free memory was 108.9MB in the beginning and 192.3MB in the end (delta: -83.4MB). Peak memory consumption was 151.8MB. Max. memory is 8.0GB. [2024-11-03 12:21:41,326 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 189.8MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 335.23ms. Allocated memory is still 189.8MB. Free memory was 146.7MB in the beginning and 131.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.94ms. Allocated memory is still 189.8MB. Free memory was 131.3MB in the beginning and 129.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.63ms. Allocated memory is still 189.8MB. Free memory was 129.2MB in the beginning and 126.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 3290.74ms. Allocated memory is still 189.8MB. Free memory was 126.4MB in the beginning and 109.3MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 24095.73ms. Allocated memory was 189.8MB in the beginning and 348.1MB in the end (delta: 158.3MB). Free memory was 108.9MB in the beginning and 192.3MB in the end (delta: -83.4MB). Peak memory consumption was 151.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.6s, OverallIterations: 3, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 581 SdHoareTripleChecker+Valid, 9.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 527 mSDsluCounter, 1053 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 787 mSDsCounter, 544 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 835 IncrementalHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 544 mSolverCounterUnsat, 266 mSDtfsCounter, 835 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 973 GetRequests, 908 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=2, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 171 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 469 NumberOfCodeBlocks, 469 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 932 ConstructedInterpolants, 3 QuantifiedInterpolants, 1913 SizeOfPredicates, 23 NumberOfNonLiveVariables, 745 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 7800/7800 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((0 != var_1_16) || ((((4 == var_1_22) && (var_1_6 == var_1_1)) && (var_1_17 == var_1_21)) && (var_1_20 == var_1_14))) && (var_1_19 <= 0)) && (var_1_7 == 5)) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (var_1_7 == 5) Ensures: (((0 != cond) && (var_1_7 == 5)) && (((((((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (var_1_18 == \old(var_1_18))) && (var_1_19 == \old(var_1_19))) && (var_1_20 == \old(var_1_20))) && (var_1_21 == \old(var_1_21))) && (var_1_22 == \old(var_1_22))) && (last_1_var_1_7 == \old(last_1_var_1_7)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 12:21:41,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...