/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-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 22:00:36,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 22:00:36,134 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 22:00:36,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 22:00:36,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 22:00:36,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 22:00:36,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 22:00:36,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 22:00:36,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 22:00:36,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 22:00:36,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 22:00:36,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 22:00:36,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 22:00:36,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 22:00:36,167 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 22:00:36,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 22:00:36,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 22:00:36,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 22:00:36,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 22:00:36,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 22:00:36,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 22:00:36,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 22:00:36,169 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 22:00:36,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 22:00:36,170 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 22:00:36,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 22:00:36,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 22:00:36,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 22:00:36,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 22:00:36,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 22:00:36,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 22:00:36,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 22:00:36,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 22:00:36,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 22:00:36,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 22:00:36,176 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 22:00:36,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 22:00:36,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 22:00:36,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 22:00:36,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 22:00:36,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 22:00:36,179 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 22:00:36,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 22:00:36,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 22:00:36,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 22:00:36,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 22:00:36,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 22:00:36,451 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 22:00:36,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2024-11-01 22:00:37,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 22:00:37,895 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 22:00:37,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2024-11-01 22:00:37,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b5d1bd49/936dedfbb3674d388358f4bc2811c387/FLAGd340453bf [2024-11-01 22:00:37,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b5d1bd49/936dedfbb3674d388358f4bc2811c387 [2024-11-01 22:00:37,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 22:00:37,914 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 22:00:37,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 22:00:37,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 22:00:37,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 22:00:37,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 10:00:37" (1/1) ... [2024-11-01 22:00:37,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c162676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:37, skipping insertion in model container [2024-11-01 22:00:37,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 10:00:37" (1/1) ... [2024-11-01 22:00:37,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 22:00:38,071 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-01 22:00:38,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 22:00:38,103 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 22:00:38,112 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-01 22:00:38,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 22:00:38,143 INFO L204 MainTranslator]: Completed translation [2024-11-01 22:00:38,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38 WrapperNode [2024-11-01 22:00:38,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 22:00:38,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 22:00:38,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 22:00:38,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 22:00:38,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,175 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-01 22:00:38,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 22:00:38,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 22:00:38,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 22:00:38,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 22:00:38,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,202 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]. [2024-11-01 22:00:38,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 22:00:38,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 22:00:38,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 22:00:38,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 22:00:38,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (1/1) ... [2024-11-01 22:00:38,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 22:00:38,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 22:00:38,251 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) [2024-11-01 22:00:38,253 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 [2024-11-01 22:00:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 22:00:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 22:00:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 22:00:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 22:00:38,336 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 22:00:38,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 22:00:38,492 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-01 22:00:38,492 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 22:00:38,502 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 22:00:38,503 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 22:00:38,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 10:00:38 BoogieIcfgContainer [2024-11-01 22:00:38,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 22:00:38,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 22:00:38,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 22:00:38,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 22:00:38,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 10:00:37" (1/3) ... [2024-11-01 22:00:38,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2da9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 10:00:38, skipping insertion in model container [2024-11-01 22:00:38,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:00:38" (2/3) ... [2024-11-01 22:00:38,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2da9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 10:00:38, skipping insertion in model container [2024-11-01 22:00:38,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 10:00:38" (3/3) ... [2024-11-01 22:00:38,510 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2024-11-01 22:00:38,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 22:00:38,522 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 22:00:38,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 22:00:38,571 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;@1377e508, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 22:00:38,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 22:00:38,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2024-11-01 22:00:38,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-01 22:00:38,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 22:00:38,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-01 22:00:38,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 22:00:38,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 22:00:38,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1805890889, now seen corresponding path program 1 times [2024-11-01 22:00:38,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 22:00:38,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266281895] [2024-11-01 22:00:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 22:00:38,592 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 22:00:38,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:00:38,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 22:00:38,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 22:00:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 22:00:38,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-01 22:00:38,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 22:00:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 22:00:38,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 22:00:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 22:00:38,691 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 22:00:38,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266281895] [2024-11-01 22:00:38,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1266281895] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 22:00:38,692 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 22:00:38,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-01 22:00:38,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817670991] [2024-11-01 22:00:38,694 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 22:00:38,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-01 22:00:38,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 22:00:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-01 22:00:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 22:00:38,717 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-01 22:00:38,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 22:00:38,725 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2024-11-01 22:00:38,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-01 22:00:38,727 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2024-11-01 22:00:38,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 22:00:38,731 INFO L225 Difference]: With dead ends: 19 [2024-11-01 22:00:38,732 INFO L226 Difference]: Without dead ends: 9 [2024-11-01 22:00:38,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 22:00:38,736 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 22:00:38,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 22:00:38,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-01 22:00:38,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-01 22:00:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-11-01 22:00:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 22:00:38,775 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2024-11-01 22:00:38,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 22:00:38,775 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 22:00:38,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-01 22:00:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 22:00:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-01 22:00:38,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 22:00:38,776 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-01 22:00:38,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-01 22:00:38,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:00:38,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 22:00:38,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 22:00:38,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950471, now seen corresponding path program 1 times [2024-11-01 22:00:38,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 22:00:38,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463938500] [2024-11-01 22:00:38,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 22:00:38,979 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 22:00:38,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:00:38,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 22:00:38,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 22:00:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 22:00:39,029 WARN L253 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-01 22:00:39,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 22:00:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 22:00:39,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 22:00:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 22:00:39,383 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 22:00:39,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463938500] [2024-11-01 22:00:39,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1463938500] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 22:00:39,385 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 22:00:39,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2024-11-01 22:00:39,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624878778] [2024-11-01 22:00:39,386 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 22:00:39,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-01 22:00:39,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 22:00:39,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-01 22:00:39,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-01 22:00:39,389 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2024-11-01 22:00:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 22:00:39,426 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-01 22:00:39,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 22:00:39,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) Word has length 7 [2024-11-01 22:00:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 22:00:39,427 INFO L225 Difference]: With dead ends: 15 [2024-11-01 22:00:39,427 INFO L226 Difference]: Without dead ends: 13 [2024-11-01 22:00:39,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-01 22:00:39,428 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 22:00:39,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 22:00:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-01 22:00:39,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-01 22:00:39,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2024-11-01 22:00:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-01 22:00:39,433 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2024-11-01 22:00:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 22:00:39,433 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-01 22:00:39,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2024-11-01 22:00:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-01 22:00:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-01 22:00:39,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 22:00:39,435 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-01 22:00:39,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-01 22:00:39,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:00:39,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 22:00:39,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 22:00:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash -169791069, now seen corresponding path program 1 times [2024-11-01 22:00:39,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 22:00:39,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582842610] [2024-11-01 22:00:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 22:00:39,641 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 22:00:39,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:00:39,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 22:00:39,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 22:00:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-01 22:00:39,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-01 22:00:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-01 22:00:39,746 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-01 22:00:39,747 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-01 22:00:39,747 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 22:00:39,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-01 22:00:39,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:00:39,953 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-01 22:00:39,967 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 22:00:39,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 10:00:39 BoogieIcfgContainer [2024-11-01 22:00:39,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 22:00:39,970 INFO L158 Benchmark]: Toolchain (without parser) took 2055.48ms. Allocated memory was 223.3MB in the beginning and 315.6MB in the end (delta: 92.3MB). Free memory was 175.5MB in the beginning and 287.5MB in the end (delta: -112.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 22:00:39,970 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 223.3MB. Free memory was 199.6MB in the beginning and 199.4MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 22:00:39,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.25ms. Allocated memory is still 223.3MB. Free memory was 175.4MB in the beginning and 192.7MB in the end (delta: -17.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2024-11-01 22:00:39,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.16ms. Allocated memory is still 223.3MB. Free memory was 192.7MB in the beginning and 191.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-01 22:00:39,971 INFO L158 Benchmark]: Boogie Preprocessor took 43.73ms. Allocated memory is still 223.3MB. Free memory was 191.2MB in the beginning and 189.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-01 22:00:39,972 INFO L158 Benchmark]: RCFGBuilder took 282.25ms. Allocated memory is still 223.3MB. Free memory was 189.1MB in the beginning and 176.0MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-01 22:00:39,972 INFO L158 Benchmark]: TraceAbstraction took 1464.28ms. Allocated memory was 223.3MB in the beginning and 315.6MB in the end (delta: 92.3MB). Free memory was 175.5MB in the beginning and 287.5MB in the end (delta: -112.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 22:00:39,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 223.3MB. Free memory was 199.6MB in the beginning and 199.4MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.25ms. Allocated memory is still 223.3MB. Free memory was 175.4MB in the beginning and 192.7MB in the end (delta: -17.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.16ms. Allocated memory is still 223.3MB. Free memory was 192.7MB in the beginning and 191.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.73ms. Allocated memory is still 223.3MB. Free memory was 191.2MB in the beginning and 189.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 282.25ms. Allocated memory is still 223.3MB. Free memory was 189.1MB in the beginning and 176.0MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1464.28ms. Allocated memory was 223.3MB in the beginning and 315.6MB in the end (delta: 92.3MB). Free memory was 175.5MB in the beginning and 287.5MB in the end (delta: -112.0MB). There was no memory consumed. 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: 22]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_1 var_10 = 1; [L31] const SORT_1 var_13 = 0; [L33] SORT_1 input_2; [L35] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_12_arg_1 = var_10; [L40] state_11 = init_12_arg_1 VAL [mask_SORT_1=1, state_11=1, state_3=0, state_4=1, var_13=0] [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND FALSE !(!(cond)) [L57] RET __VERIFIER_assert(!(bad_17_arg_0)) [L59] SORT_1 var_5_arg_0 = ~input_2; [L60] var_5_arg_0 = var_5_arg_0 & mask_SORT_1 [L61] SORT_1 var_5_arg_1 = ~state_3; [L62] var_5_arg_1 = var_5_arg_1 & mask_SORT_1 [L63] SORT_1 var_5_arg_2 = state_3; [L64] SORT_1 var_5 = var_5_arg_0 ? var_5_arg_1 : var_5_arg_2; [L65] var_5 = var_5 & mask_SORT_1 [L66] SORT_1 next_7_arg_1 = var_5; [L67] SORT_1 var_6_arg_0 = input_2; [L68] SORT_1 var_6_arg_1 = ~state_4; [L69] var_6_arg_1 = var_6_arg_1 & mask_SORT_1 [L70] SORT_1 var_6_arg_2 = state_4; [L71] SORT_1 var_6 = var_6_arg_0 ? var_6_arg_1 : var_6_arg_2; [L72] var_6 = var_6 & mask_SORT_1 [L73] SORT_1 next_8_arg_1 = var_6; [L74] SORT_1 next_14_arg_1 = var_13; [L76] state_3 = next_7_arg_1 [L77] state_4 = next_8_arg_1 [L78] state_11 = next_14_arg_1 [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=2, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 116 SizeOfPredicates, 3 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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! [2024-11-01 22:00:39,995 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...