/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 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 05:43:19,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 05:43:19,191 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 05:43:19,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 05:43:19,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 05:43:19,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 05:43:19,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 05:43:19,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 05:43:19,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 05:43:19,225 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 05:43:19,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 05:43:19,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 05:43:19,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 05:43:19,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 05:43:19,226 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 05:43:19,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 05:43:19,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 05:43:19,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 05:43:19,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 05:43:19,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 05:43:19,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 05:43:19,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 05:43:19,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 05:43:19,234 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 05:43:19,234 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 05:43:19,235 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 05:43:19,235 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 05:43:19,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 05:43:19,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 05:43:19,235 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 05:43:19,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 05:43:19,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 05:43:19,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 05:43:19,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 05:43:19,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:43:19,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 05:43:19,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 05:43:19,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 05:43:19,237 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 05:43:19,237 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 05:43:19,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 05:43:19,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 05:43:19,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 05:43:19,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 05:43:19,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:19,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 05:43:19,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 05:43:19,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 05:43:19,483 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 05:43:19,484 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 05:43:19,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2024-11-03 05:43:20,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 05:43:21,038 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 05:43:21,038 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2024-11-03 05:43:21,046 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a297cf69/3f24f6091792473abdf6cdc60346e526/FLAGe2c885d07 [2024-11-03 05:43:21,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a297cf69/3f24f6091792473abdf6cdc60346e526 [2024-11-03 05:43:21,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 05:43:21,061 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 05:43:21,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 05:43:21,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 05:43:21,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 05:43:21,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5cb560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21, skipping insertion in model container [2024-11-03 05:43:21,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 05:43:21,252 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[730,743] [2024-11-03 05:43:21,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:43:21,307 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 05:43:21,319 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[730,743] [2024-11-03 05:43:21,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:43:21,357 INFO L204 MainTranslator]: Completed translation [2024-11-03 05:43:21,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21 WrapperNode [2024-11-03 05:43:21,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 05:43:21,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 05:43:21,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 05:43:21,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 05:43:21,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,386 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-11-03 05:43:21,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 05:43:21,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 05:43:21,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 05:43:21,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 05:43:21,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,417 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 05:43:21,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 05:43:21,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 05:43:21,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 05:43:21,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 05:43:21,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (1/1) ... [2024-11-03 05:43:21,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:43:21,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 05:43:21,474 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 05:43:21,477 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 05:43:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 05:43:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 05:43:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-03 05:43:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-03 05:43:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 05:43:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 05:43:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-03 05:43:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-03 05:43:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-03 05:43:21,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-03 05:43:21,621 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 05:43:21,623 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 05:43:21,900 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-03 05:43:21,900 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 05:43:21,913 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 05:43:21,914 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-03 05:43:21,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:21 BoogieIcfgContainer [2024-11-03 05:43:21,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 05:43:21,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 05:43:21,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 05:43:21,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 05:43:21,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:43:21" (1/3) ... [2024-11-03 05:43:21,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd5f59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:21, skipping insertion in model container [2024-11-03 05:43:21,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:21" (2/3) ... [2024-11-03 05:43:21,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd5f59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:21, skipping insertion in model container [2024-11-03 05:43:21,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:21" (3/3) ... [2024-11-03 05:43:21,922 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2024-11-03 05:43:21,937 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 05:43:21,937 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 05:43:21,986 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 05:43:21,992 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;@55113ed1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 05:43:21,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 05:43:21,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 40 states have (on average 1.475) internal successors, (59), 41 states have internal predecessors, (59), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-03 05:43:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-03 05:43:22,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:22,003 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:22,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:22,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash 173410466, now seen corresponding path program 1 times [2024-11-03 05:43:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:22,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175456705] [2024-11-03 05:43:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:22,016 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:22,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:22,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:43:22,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 05:43:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:22,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-03 05:43:22,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:22,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:22,928 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:22,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175456705] [2024-11-03 05:43:22,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1175456705] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:22,929 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:22,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 8] imperfect sequences [] total 20 [2024-11-03 05:43:22,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350255939] [2024-11-03 05:43:22,931 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:22,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-03 05:43:22,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:22,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-03 05:43:22,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-03 05:43:22,965 INFO L87 Difference]: Start difference. First operand has 54 states, 40 states have (on average 1.475) internal successors, (59), 41 states have internal predecessors, (59), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 20 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:23,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:23,602 INFO L93 Difference]: Finished difference Result 180 states and 290 transitions. [2024-11-03 05:43:23,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-03 05:43:23,605 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 31 [2024-11-03 05:43:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:23,615 INFO L225 Difference]: With dead ends: 180 [2024-11-03 05:43:23,616 INFO L226 Difference]: Without dead ends: 119 [2024-11-03 05:43:23,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-03 05:43:23,627 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 64 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:23,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1146 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 05:43:23,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-03 05:43:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 86. [2024-11-03 05:43:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 63 states have internal predecessors, (79), 18 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-03 05:43:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2024-11-03 05:43:23,679 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 31 [2024-11-03 05:43:23,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:23,680 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2024-11-03 05:43:23,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:23,680 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2024-11-03 05:43:23,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-03 05:43:23,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:23,685 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 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 05:43:23,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 05:43:23,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:23,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:23,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1707598935, now seen corresponding path program 1 times [2024-11-03 05:43:23,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:23,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244384696] [2024-11-03 05:43:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:23,888 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:23,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:23,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:43:23,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 05:43:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:23,947 WARN L253 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-03 05:43:23,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:43:24,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:24,499 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:24,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244384696] [2024-11-03 05:43:24,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [244384696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:24,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:24,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9] total 18 [2024-11-03 05:43:24,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643014031] [2024-11-03 05:43:24,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:24,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 05:43:24,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:24,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 05:43:24,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:43:24,502 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 15 states have internal predecessors, (39), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:24,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:24,936 INFO L93 Difference]: Finished difference Result 163 states and 227 transitions. [2024-11-03 05:43:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-03 05:43:24,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 15 states have internal predecessors, (39), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2024-11-03 05:43:24,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:24,939 INFO L225 Difference]: With dead ends: 163 [2024-11-03 05:43:24,939 INFO L226 Difference]: Without dead ends: 123 [2024-11-03 05:43:24,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-03 05:43:24,941 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 27 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:24,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 595 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 05:43:24,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-03 05:43:24,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 98. [2024-11-03 05:43:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.267605633802817) internal successors, (90), 73 states have internal predecessors, (90), 18 states have call successors, (18), 7 states have call predecessors, (18), 8 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-03 05:43:24,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 129 transitions. [2024-11-03 05:43:24,965 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 129 transitions. Word has length 35 [2024-11-03 05:43:24,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:24,966 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 129 transitions. [2024-11-03 05:43:24,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 15 states have internal predecessors, (39), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:24,966 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 129 transitions. [2024-11-03 05:43:24,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-03 05:43:24,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:24,968 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 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 05:43:24,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 05:43:25,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:25,172 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:25,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:25,172 INFO L85 PathProgramCache]: Analyzing trace with hash -786298741, now seen corresponding path program 1 times [2024-11-03 05:43:25,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:25,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516223463] [2024-11-03 05:43:25,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:25,173 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:25,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:25,176 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:43:25,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 05:43:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:25,233 WARN L253 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-03 05:43:25,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:43:25,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:25,679 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:25,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516223463] [2024-11-03 05:43:25,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1516223463] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:25,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:25,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 17 [2024-11-03 05:43:25,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556825769] [2024-11-03 05:43:25,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:25,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 05:43:25,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:25,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 05:43:25,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-03 05:43:25,681 INFO L87 Difference]: Start difference. First operand 98 states and 129 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:25,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:25,788 INFO L93 Difference]: Finished difference Result 151 states and 200 transitions. [2024-11-03 05:43:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 05:43:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2024-11-03 05:43:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:25,792 INFO L225 Difference]: With dead ends: 151 [2024-11-03 05:43:25,792 INFO L226 Difference]: Without dead ends: 111 [2024-11-03 05:43:25,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:43:25,794 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 12 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:25,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 399 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:43:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-03 05:43:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2024-11-03 05:43:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.25) internal successors, (95), 78 states have internal predecessors, (95), 18 states have call successors, (18), 8 states have call predecessors, (18), 9 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-03 05:43:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2024-11-03 05:43:25,807 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 35 [2024-11-03 05:43:25,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:25,807 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2024-11-03 05:43:25,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2024-11-03 05:43:25,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-03 05:43:25,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:25,809 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:25,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 05:43:26,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:26,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:26,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:26,012 INFO L85 PathProgramCache]: Analyzing trace with hash -54729342, now seen corresponding path program 2 times [2024-11-03 05:43:26,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:26,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961967933] [2024-11-03 05:43:26,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:26,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:26,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:26,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:43:26,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 05:43:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:26,091 WARN L253 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 05:43:26,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 05:43:26,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-03 05:43:26,554 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:26,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961967933] [2024-11-03 05:43:26,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1961967933] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:26,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:26,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-11-03 05:43:26,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333098215] [2024-11-03 05:43:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:26,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 05:43:26,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:26,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 05:43:26,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-03 05:43:26,556 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:26,624 INFO L93 Difference]: Finished difference Result 110 states and 139 transitions. [2024-11-03 05:43:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 05:43:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-03 05:43:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:26,626 INFO L225 Difference]: With dead ends: 110 [2024-11-03 05:43:26,626 INFO L226 Difference]: Without dead ends: 108 [2024-11-03 05:43:26,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-03 05:43:26,629 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 3 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:26,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 308 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:43:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-03 05:43:26,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-03 05:43:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.240506329113924) internal successors, (98), 81 states have internal predecessors, (98), 18 states have call successors, (18), 9 states have call predecessors, (18), 10 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-03 05:43:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2024-11-03 05:43:26,645 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 39 [2024-11-03 05:43:26,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:26,648 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2024-11-03 05:43:26,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:26,649 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2024-11-03 05:43:26,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:43:26,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:26,650 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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 05:43:26,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 05:43:26,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:26,851 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:26,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:26,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1837968146, now seen corresponding path program 1 times [2024-11-03 05:43:26,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:26,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36381386] [2024-11-03 05:43:26,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:26,853 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:26,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:26,854 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:43:26,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 05:43:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:26,914 WARN L253 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 05:43:26,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-03 05:43:27,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-03 05:43:27,898 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:27,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36381386] [2024-11-03 05:43:27,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [36381386] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:27,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:27,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [16] total 33 [2024-11-03 05:43:27,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604342968] [2024-11-03 05:43:27,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:27,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-03 05:43:27,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:27,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-03 05:43:27,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2024-11-03 05:43:27,901 INFO L87 Difference]: Start difference. First operand 108 states and 137 transitions. Second operand has 19 states, 16 states have (on average 1.5) internal successors, (24), 14 states have internal predecessors, (24), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-03 05:43:28,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:28,463 INFO L93 Difference]: Finished difference Result 165 states and 218 transitions. [2024-11-03 05:43:28,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-03 05:43:28,464 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 1.5) internal successors, (24), 14 states have internal predecessors, (24), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 44 [2024-11-03 05:43:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:28,465 INFO L225 Difference]: With dead ends: 165 [2024-11-03 05:43:28,465 INFO L226 Difference]: Without dead ends: 157 [2024-11-03 05:43:28,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=1209, Unknown=0, NotChecked=0, Total=1332 [2024-11-03 05:43:28,467 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 41 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:28,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 613 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:43:28,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-03 05:43:28,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 111. [2024-11-03 05:43:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 82 states have (on average 1.2317073170731707) internal successors, (101), 83 states have internal predecessors, (101), 18 states have call successors, (18), 9 states have call predecessors, (18), 10 states have return successors, (21), 18 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-03 05:43:28,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 140 transitions. [2024-11-03 05:43:28,494 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 140 transitions. Word has length 44 [2024-11-03 05:43:28,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:28,494 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 140 transitions. [2024-11-03 05:43:28,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 1.5) internal successors, (24), 14 states have internal predecessors, (24), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-03 05:43:28,494 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 140 transitions. [2024-11-03 05:43:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-03 05:43:28,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:28,496 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:43:28,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-03 05:43:28,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:28,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:28,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:28,699 INFO L85 PathProgramCache]: Analyzing trace with hash 595859751, now seen corresponding path program 1 times [2024-11-03 05:43:28,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:28,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762203846] [2024-11-03 05:43:28,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:28,699 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:28,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:28,700 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:43:28,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 05:43:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:28,756 WARN L253 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-03 05:43:28,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-03 05:43:29,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:29,284 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:29,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762203846] [2024-11-03 05:43:29,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1762203846] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:29,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:29,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 22 [2024-11-03 05:43:29,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51720803] [2024-11-03 05:43:29,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:29,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 05:43:29,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 05:43:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2024-11-03 05:43:29,286 INFO L87 Difference]: Start difference. First operand 111 states and 140 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-03 05:43:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:29,422 INFO L93 Difference]: Finished difference Result 152 states and 192 transitions. [2024-11-03 05:43:29,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 05:43:29,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2024-11-03 05:43:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:29,423 INFO L225 Difference]: With dead ends: 152 [2024-11-03 05:43:29,424 INFO L226 Difference]: Without dead ends: 125 [2024-11-03 05:43:29,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2024-11-03 05:43:29,425 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:29,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 498 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:43:29,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-03 05:43:29,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 119. [2024-11-03 05:43:29,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 89 states have internal predecessors, (108), 19 states have call successors, (19), 10 states have call predecessors, (19), 11 states have return successors, (22), 19 states have call predecessors, (22), 18 states have call successors, (22) [2024-11-03 05:43:29,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 149 transitions. [2024-11-03 05:43:29,441 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 149 transitions. Word has length 49 [2024-11-03 05:43:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:29,441 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 149 transitions. [2024-11-03 05:43:29,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-03 05:43:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 149 transitions. [2024-11-03 05:43:29,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-03 05:43:29,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:29,445 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 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 05:43:29,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-03 05:43:29,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:29,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:29,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1849173563, now seen corresponding path program 1 times [2024-11-03 05:43:29,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:29,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702462304] [2024-11-03 05:43:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:29,647 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:29,649 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:43:29,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-03 05:43:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 05:43:29,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-03 05:43:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 05:43:29,790 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-03 05:43:29,790 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-03 05:43:29,791 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 05:43:29,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-03 05:43:29,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:29,997 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-03 05:43:30,038 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 05:43:30,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:43:30 BoogieIcfgContainer [2024-11-03 05:43:30,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 05:43:30,048 INFO L158 Benchmark]: Toolchain (without parser) took 8987.16ms. Allocated memory is still 331.4MB. Free memory was 284.5MB in the beginning and 204.8MB in the end (delta: 79.7MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2024-11-03 05:43:30,048 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 208.7MB. Free memory is still 162.1MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 05:43:30,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.16ms. Allocated memory is still 331.4MB. Free memory was 284.1MB in the beginning and 269.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 05:43:30,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.69ms. Allocated memory is still 331.4MB. Free memory was 268.8MB in the beginning and 267.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 05:43:30,049 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 331.4MB. Free memory was 267.4MB in the beginning and 264.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 05:43:30,050 INFO L158 Benchmark]: RCFGBuilder took 479.03ms. Allocated memory is still 331.4MB. Free memory was 264.9MB in the beginning and 248.9MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-03 05:43:30,051 INFO L158 Benchmark]: TraceAbstraction took 8131.24ms. Allocated memory is still 331.4MB. Free memory was 248.1MB in the beginning and 204.8MB in the end (delta: 43.3MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2024-11-03 05:43:30,052 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 208.7MB. Free memory is still 162.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 296.16ms. Allocated memory is still 331.4MB. Free memory was 284.1MB in the beginning and 269.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.69ms. Allocated memory is still 331.4MB. Free memory was 268.8MB in the beginning and 267.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 331.4MB. Free memory was 267.4MB in the beginning and 264.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 479.03ms. Allocated memory is still 331.4MB. Free memory was 264.9MB in the beginning and 248.9MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 8131.24ms. Allocated memory is still 331.4MB. Free memory was 248.1MB in the beginning and 204.8MB in the end (delta: 43.3MB). Peak memory consumption was 44.0MB. 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 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add1 ; [L233] unsigned int r_add2 ; [L234] unsigned int zero ; [L235] int tmp ; [L236] int tmp___0 ; [L237] int __retres14 ; [L241] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L241] RET, EXPR base2flt(0, 0) [L241] zero = base2flt(0, 0) [L242] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=7, \old(m)=16777217] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L29] COND FALSE !(! m) VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L57] COND TRUE 1 VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L76] m = m & ~ (1U << 24U) [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=7, \old(m)=16777217, __retres4=-2030043135] [L80] return (__retres4); VAL [\old(e)=7, \old(m)=16777217, \result=-2030043135] [L242] RET, EXPR base2flt(ma, ea) VAL [ea=7, ma=16777217] [L242] a = base2flt(ma, ea) [L243] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=70, \old(m)=33554431] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L29] COND FALSE !(! m) VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L57] COND TRUE 1 VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L76] m = m & ~ (1U << 24U) [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=70, \old(m)=33554431, __retres4=-956301313] [L80] return (__retres4); VAL [\old(e)=70, \old(m)=33554431, \result=-956301313] [L243] RET, EXPR base2flt(mb, eb) VAL [a=-2030043135, ea=7, eb=70, ma=16777217, mb=33554431] [L243] b = base2flt(mb, eb) [L244] CALL addflt(a, b) VAL [\old(a)=-2030043135, \old(b)=-956301313] [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [\old(a)=-2030043135, \old(b)=-956301313, a=-2030043135, b=-956301313] [L94] COND TRUE a < b [L95] tmp = a [L96] a = b [L97] b = tmp VAL [\old(a)=-2030043135, \old(b)=-956301313, a=-956301313, b=-2030043135] [L101] COND FALSE !(! b) [L108] ma = a & ((1U << 24U) - 1U) [L109] ea = (int )(a >> 24U) - 128 [L110] ma = ma | (1U << 24U) [L111] mb = b & ((1U << 24U) - 1U) [L112] eb = (int )(b >> 24U) - 128 [L113] mb = mb | (1U << 24U) VAL [\old(a)=-2030043135, \old(b)=-956301313, a=-956301313, ea=70, eb=7, ma=33554431, mb=16777217] [L114] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L114] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=-2030043135, \old(b)=-956301313, a=-956301313, ea=70, eb=7, ma=33554431, mb=16777217] [L115] delta = ea - eb VAL [\old(a)=-2030043135, \old(b)=-956301313, a=-956301313, delta=63, ea=70, ma=33554431, mb=16777217] [L116] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0] [L17] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 189 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 3559 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3202 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1694 IncrementalHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 357 mSDtfsCounter, 1694 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 472 GetRequests, 335 SyntacticMatches, 5 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=6, InterpolantAutomatonStates: 85, 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, 6 MinimizatonAttempts, 117 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 454 ConstructedInterpolants, 16 QuantifiedInterpolants, 1378 SizeOfPredicates, 51 NumberOfNonLiveVariables, 476 ConjunctsInSsa, 244 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 174/210 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-03 05:43:30,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...