/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.h_CRC.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 21:38:51,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 21:38:51,717 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 21:38:51,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 21:38:51,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 21:38:51,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 21:38:51,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 21:38:51,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 21:38:51,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 21:38:51,754 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 21:38:51,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 21:38:51,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 21:38:51,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 21:38:51,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 21:38:51,755 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 21:38:51,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 21:38:51,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 21:38:51,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 21:38:51,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 21:38:51,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 21:38:51,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 21:38:51,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 21:38:51,759 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 21:38:51,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 21:38:51,760 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 21:38:51,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 21:38:51,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 21:38:51,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 21:38:51,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 21:38:51,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 21:38:51,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 21:38:51,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 21:38:51,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 21:38:51,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 21:38:51,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 21:38:51,762 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 21:38:51,764 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 21:38:51,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 21:38:51,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 21:38:51,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 21:38:51,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 21:38:51,765 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 21:38:51,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 21:38:51,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 21:38:52,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 21:38:52,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 21:38:52,022 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 21:38:52,022 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 21:38:52,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2024-11-01 21:38:53,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 21:38:53,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 21:38:53,505 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2024-11-01 21:38:53,516 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f3e8a41/645aa693585248caa3fd3c110f2e9ed6/FLAG0da4cb175 [2024-11-01 21:38:53,528 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f3e8a41/645aa693585248caa3fd3c110f2e9ed6 [2024-11-01 21:38:53,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 21:38:53,531 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 21:38:53,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 21:38:53,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 21:38:53,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 21:38:53,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:53,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c313e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53, skipping insertion in model container [2024-11-01 21:38:53,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:53,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 21:38:53,711 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.h_CRC.c[1245,1258] [2024-11-01 21:38:53,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 21:38:53,877 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 21:38:53,885 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.h_CRC.c[1245,1258] [2024-11-01 21:38:53,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 21:38:53,969 INFO L204 MainTranslator]: Completed translation [2024-11-01 21:38:53,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53 WrapperNode [2024-11-01 21:38:53,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 21:38:53,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 21:38:53,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 21:38:53,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 21:38:53,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:53,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,037 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 674 [2024-11-01 21:38:54,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 21:38:54,038 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 21:38:54,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 21:38:54,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 21:38:54,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,052 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,068 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-01 21:38:54,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 21:38:54,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 21:38:54,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 21:38:54,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 21:38:54,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (1/1) ... [2024-11-01 21:38:54,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 21:38:54,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 21:38:54,145 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 21:38:54,148 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 21:38:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 21:38:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 21:38:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 21:38:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 21:38:54,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 21:38:54,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 21:38:54,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 21:38:54,913 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-01 21:38:54,914 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 21:38:54,922 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 21:38:54,923 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 21:38:54,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:38:54 BoogieIcfgContainer [2024-11-01 21:38:54,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 21:38:54,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 21:38:54,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 21:38:54,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 21:38:54,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 09:38:53" (1/3) ... [2024-11-01 21:38:54,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2facaa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:38:54, skipping insertion in model container [2024-11-01 21:38:54,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:53" (2/3) ... [2024-11-01 21:38:54,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2facaa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:38:54, skipping insertion in model container [2024-11-01 21:38:54,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:38:54" (3/3) ... [2024-11-01 21:38:54,929 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_CRC.c [2024-11-01 21:38:54,940 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 21:38:54,940 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 21:38:54,981 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 21:38:54,986 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;@4541a925, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 21:38:54,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 21:38:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 21:38:54,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 21:38:54,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:38:54,996 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 21:38:54,996 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:38:55,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:38:55,001 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 21:38:55,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:38:55,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936027120] [2024-11-01 21:38:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:38:55,010 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:38:55,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:38:55,012 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 21:38:55,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 21:38:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:38:55,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-01 21:38:55,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:38:55,323 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 21:38:55,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 21:38:55,404 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 21:38:55,405 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 21:38:55,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936027120] [2024-11-01 21:38:55,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1936027120] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 21:38:55,406 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 21:38:55,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 21:38:55,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782773146] [2024-11-01 21:38:55,408 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 21:38:55,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 21:38:55,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 21:38:55,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 21:38:55,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 21:38:55,429 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 21:38:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 21:38:55,492 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 21:38:55,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 21:38:55,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 5 [2024-11-01 21:38:55,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 21:38:55,499 INFO L225 Difference]: With dead ends: 18 [2024-11-01 21:38:55,499 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 21:38:55,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-01 21:38:55,504 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 21:38:55,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 21:38:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 21:38:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 21:38:55,523 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 21:38:55,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 21:38:55,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 21:38:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 21:38:55,527 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 21:38:55,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 21:38:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 21:38:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 21:38:55,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:38:55,530 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 21:38:55,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-01 21:38:55,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:38:55,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:38:55,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:38:55,734 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 21:38:55,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:38:55,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919809857] [2024-11-01 21:38:55,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:38:55,734 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:38:55,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:38:55,737 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 21:38:55,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 21:38:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:38:55,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-01 21:38:55,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:38:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:38:58,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 21:39:05,087 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse8 (or (not (= (bvand |c_ULTIMATE.start_main_~var_10~0#1| |c_ULTIMATE.start_main_~mask_SORT_9~0#1|) |c_ULTIMATE.start_main_~var_13~0#1|)) (forall ((|v_ULTIMATE.start_main_#t~nondet10#1_12| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet10#1_12|))))))) (.cse9 (forall ((|v_ULTIMATE.start_main_#t~nondet10#1_12| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet10#1_12|))))))) (.cse29 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse31 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_17~0#1|))) (let ((.cse1 (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) .cse31))))) (_ bv0 8))) (.cse10 (forall ((|v_ULTIMATE.start_main_#t~nondet6#1_12| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet6#1_12|)))))) (.cse7 (forall ((|v_ULTIMATE.start_main_#t~nondet9#1_12| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet9#1_12|))))))) (.cse5 (and .cse8 (or .cse9 (forall ((|v_ULTIMATE.start_main_#t~nondet8#1_12| (_ BitVec 8))) (not (= |c_ULTIMATE.start_main_~var_13~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_9~0#1| (bvor (bvshl |c_ULTIMATE.start_main_~state_11~0#1| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet8#1_12|) .cse29))))))))))) (.cse6 (forall ((|v_ULTIMATE.start_main_#t~nondet9#1_12| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet9#1_12|)))))) (.cse4 (forall ((|v_ULTIMATE.start_main_#t~nondet6#1_12| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet6#1_12|))))))) (.cse3 (not (= |c_ULTIMATE.start_main_~var_13~0#1| (bvand |c_ULTIMATE.start_main_~state_11~0#1| |c_ULTIMATE.start_main_~mask_SORT_9~0#1|)))) (.cse2 (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) .cse31))) .cse0)) (_ bv0 8)))) (and (or (forall ((|v_ULTIMATE.start_main_#t~nondet7#1_12| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet7#1_12|)))))) (and (or (and .cse1 (or .cse2 .cse3)) .cse4) (or (and (or (and .cse1 (or .cse5 .cse2)) .cse6) (or .cse7 (and .cse1 (or .cse2 (and .cse8 (or .cse9 .cse3)))))) .cse10))) (or (forall ((|v_ULTIMATE.start_main_#t~nondet7#1_12| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet7#1_12|))))) (and .cse1 (or (and (or .cse10 (and (or (and (or (forall ((|v_ULTIMATE.start_main_#t~nondet8#1_12| (_ BitVec 8))) (not (= |c_ULTIMATE.start_main_~var_13~0#1| (bvand (let ((.cse30 ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv24 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet8#1_12|) .cse29)))))))) (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv5 32)))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv23 32))))))) (_ bv31 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_218~0#1| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv4 32))))) (.cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv7 32)))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 .cse13)))))) (_ bv30 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_216~0#1| (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv3 32))))) (.cse15 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv6 32)))))) (bvor (bvand (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv2 32)))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 .cse14))) .cse15))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv20 32))))))) (_ bv28 32)) (bvand (let ((.cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv1 32)))))) (let ((.cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse22 .cse12))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse13 .cse16)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv19 32))))))) (_ bv27 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_210~0#1| (let ((.cse23 ((_ zero_extend 24) ((_ extract 7 0) .cse30)))) (let ((.cse18 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse23 .cse15))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse17 .cse18))) .cse13))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv18 32))))))) (_ bv26 32)) (bvand (let ((.cse19 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse17 .cse14))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv17 32)))) .cse19))) (_ bv25 32)) (bvand (let ((.cse20 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse16 .cse14))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv16 32)))) .cse20))) (_ bv24 32)) (bvand (let ((.cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse22 .cse18))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv15 32)))) .cse21))) (_ bv23 32)) (bvand (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_200~0#1| (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv13 32))))))) (_ bv21 32)) (bvand (bvor (bvand (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv11 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 .cse17)))))) (_ bv19 32)) (bvand (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse15 .cse14)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv10 32))))))) (_ bv18 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_192~0#1| (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv9 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse22 .cse11))) .cse15)))))) (_ bv17 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_190~0#1| (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv8 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse13 .cse23))))))))) (_ bv16 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_188~0#1|) ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_186~0#1|) ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (let ((.cse27 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse20 .cse17))))) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse21 .cse14))) .cse13)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv4 32)))))))) (_ bv12 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_180~0#1|) ((_ zero_extend 16) ((_ extract 15 0) (let ((.cse24 ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse17 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse22 .cse23)))))) .cse13))))) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv3 32)))) .cse24)))) (_ bv11 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (let ((.cse25 ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse23 .cse14))) .cse17))) .cse11))))) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv2 32)))) .cse25)))) (_ bv10 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_176~0#1|) ((_ zero_extend 16) ((_ extract 15 0) (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse22 .cse14))) .cse13)))))))) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_174~0#1|) ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor .cse24 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_main_~state_11~0#1|)))))) (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 .cse25))) (_ bv7 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse26 .cse15)))))) (_ bv6 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_169~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 .cse15)))))) .cse13))) .cse17)))))) .cse23))) (_ bv5 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_165~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl .cse27 (_ bv3 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 .cse18)))))))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse28 .cse14))) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_161~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse18))) (bvshl .cse28 (_ bv1 32)))))))))))) ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_163~0#1|)))))))))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse17 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse13 .cse15)))))) .cse14))) .cse23))) (_ bv4 32))))) ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_167~0#1|))))))))))))) ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_171~0#1|))))))) .cse29))))))))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv1 32)))) .cse26)))) (_ bv9 32))))))))))))) ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_178~0#1|)))))))))))))) ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_182~0#1|)))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse15 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse27 .cse11)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv5 32)))))))) (_ bv13 32)))))) ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_184~0#1|)))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse19 .cse13))) .cse15)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv6 32)))))))) (_ bv14 32)))))))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv7 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse13 .cse17))))))))))))) (_ bv15 32))))))))))))) |c_ULTIMATE.start_main_~mask_SORT_194~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_196~0#1|) (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv12 32))))))) (_ bv20 32))) |c_ULTIMATE.start_main_~mask_SORT_198~0#1|))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv14 32)))) .cse23))) (_ bv22 32))) |c_ULTIMATE.start_main_~mask_SORT_202~0#1|))) |c_ULTIMATE.start_main_~mask_SORT_204~0#1|))) |c_ULTIMATE.start_main_~mask_SORT_206~0#1|))) |c_ULTIMATE.start_main_~mask_SORT_208~0#1|)))))))) |c_ULTIMATE.start_main_~mask_SORT_212~0#1|))) |c_ULTIMATE.start_main_~mask_SORT_214~0#1|) (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvxor ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~state_11~0#1| (_ bv21 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse17 .cse15))))))))) (_ bv29 32))))))))))) |c_ULTIMATE.start_main_~mask_SORT_9~0#1|)))) .cse9) .cse8) .cse7) (or .cse5 .cse6))) (or .cse4 .cse3)) .cse2))))))) is different from false [2024-11-01 21:39:05,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-01 21:39:05,462 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 21:39:05,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919809857] [2024-11-01 21:39:05,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [919809857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 21:39:05,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 21:39:05,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 21:39:05,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738880011] [2024-11-01 21:39:05,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 21:39:05,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 21:39:05,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 21:39:05,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 21:39:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=49, Unknown=1, NotChecked=14, Total=90 [2024-11-01 21:39:05,465 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 21:39:10,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 21:39:10,394 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-01 21:39:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-01 21:39:10,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) Word has length 8 [2024-11-01 21:39:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 21:39:10,395 INFO L225 Difference]: With dead ends: 15 [2024-11-01 21:39:10,395 INFO L226 Difference]: Without dead ends: 13 [2024-11-01 21:39:10,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=50, Invalid=85, Unknown=1, NotChecked=20, Total=156 [2024-11-01 21:39:10,396 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-01 21:39:10,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 8 Unchecked, 0.6s Time] [2024-11-01 21:39:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-01 21:39:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-01 21:39:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 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 21:39:10,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-01 21:39:10,402 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-01 21:39:10,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 21:39:10,402 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-01 21:39:10,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 21:39:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-01 21:39:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-01 21:39:10,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:39:10,403 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-01 21:39:10,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-01 21:39:10,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:39:10,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:39:10,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:39:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-01 21:39:10,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:39:10,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166433719] [2024-11-01 21:39:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:39:10,605 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:39:10,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:39:10,606 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 21:39:10,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 21:39:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:39:10,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-01 21:39:10,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:39:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:39:33,308 INFO L311 TraceCheckSpWp]: Computing backward predicates...