/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.vcegar_QF_BV_itc99_b13_p15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 22:30:33,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 22:30:33,717 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 22:30:33,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 22:30:33,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 22:30:33,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 22:30:33,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 22:30:33,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 22:30:33,759 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 22:30:33,759 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 22:30:33,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 22:30:33,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 22:30:33,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 22:30:33,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 22:30:33,761 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 22:30:33,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 22:30:33,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 22:30:33,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 22:30:33,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 22:30:33,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 22:30:33,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 22:30:33,767 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 22:30:33,768 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 22:30:33,768 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 22:30:33,768 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 22:30:33,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 22:30:33,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 22:30:33,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 22:30:33,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 22:30:33,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 22:30:33,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 22:30:33,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 22:30:33,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 22:30:33,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 22:30:33,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 22:30:33,772 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 22:30:33,775 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 22:30:33,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 22:30:33,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 22:30:33,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 22:30:33,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 22:30:33,777 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 22:30:33,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 22:30:34,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 22:30:34,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 22:30:34,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 22:30:34,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 22:30:34,091 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 22:30:34,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2024-11-01 22:30:35,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 22:30:35,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 22:30:35,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2024-11-01 22:30:35,773 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d73c9f11/3dcaa9f8dccb49bc968aade5d773cd36/FLAG99ddbe0c3 [2024-11-01 22:30:35,786 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d73c9f11/3dcaa9f8dccb49bc968aade5d773cd36 [2024-11-01 22:30:35,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 22:30:35,789 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 22:30:35,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 22:30:35,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 22:30:35,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 22:30:35,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 10:30:35" (1/1) ... [2024-11-01 22:30:35,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3adaa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:35, skipping insertion in model container [2024-11-01 22:30:35,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 10:30:35" (1/1) ... [2024-11-01 22:30:35,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 22:30:36,027 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.vcegar_QF_BV_itc99_b13_p15.c[1266,1279] [2024-11-01 22:30:36,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 22:30:36,167 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 22:30:36,179 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.vcegar_QF_BV_itc99_b13_p15.c[1266,1279] [2024-11-01 22:30:36,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 22:30:36,283 INFO L204 MainTranslator]: Completed translation [2024-11-01 22:30:36,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36 WrapperNode [2024-11-01 22:30:36,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 22:30:36,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 22:30:36,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 22:30:36,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 22:30:36,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,365 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 450 [2024-11-01 22:30:36,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 22:30:36,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 22:30:36,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 22:30:36,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 22:30:36,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,423 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 22:30:36,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 22:30:36,463 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 22:30:36,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 22:30:36,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 22:30:36,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (1/1) ... [2024-11-01 22:30:36,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 22:30:36,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 22:30:36,497 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 22:30:36,500 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 22:30:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 22:30:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 22:30:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 22:30:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 22:30:36,665 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 22:30:36,671 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 22:30:37,083 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-01 22:30:37,084 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 22:30:37,097 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 22:30:37,097 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 22:30:37,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 10:30:37 BoogieIcfgContainer [2024-11-01 22:30:37,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 22:30:37,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 22:30:37,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 22:30:37,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 22:30:37,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 10:30:35" (1/3) ... [2024-11-01 22:30:37,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5801f80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 10:30:37, skipping insertion in model container [2024-11-01 22:30:37,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 10:30:36" (2/3) ... [2024-11-01 22:30:37,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5801f80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 10:30:37, skipping insertion in model container [2024-11-01 22:30:37,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 10:30:37" (3/3) ... [2024-11-01 22:30:37,109 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2024-11-01 22:30:37,125 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 22:30:37,126 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 22:30:37,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 22:30:37,192 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;@1aea5ee2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 22:30:37,193 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 22:30:37,196 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 22:30:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 22:30:37,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 22:30:37,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 22:30:37,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 22:30:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 22:30:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 22:30:37,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 22:30:37,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808512575] [2024-11-01 22:30:37,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 22:30:37,218 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 22:30:37,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:30:37,221 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 22:30:37,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 22:30:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 22:30:37,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-01 22:30:37,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 22:30:37,726 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 22:30:37,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 22:30:37,940 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 22:30:37,941 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 22:30:37,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808512575] [2024-11-01 22:30:37,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [808512575] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 22:30:37,942 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 22:30:37,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 22:30:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243368696] [2024-11-01 22:30:37,945 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 22:30:37,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 22:30:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 22:30:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 22:30:37,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 22:30:37,975 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 22:30:38,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 22:30:38,104 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2024-11-01 22:30:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 22:30:38,108 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 22:30:38,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 22:30:38,114 INFO L225 Difference]: With dead ends: 21 [2024-11-01 22:30:38,114 INFO L226 Difference]: Without dead ends: 13 [2024-11-01 22:30:38,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-01 22:30:38,121 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 22:30:38,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 22:30:38,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-01 22:30:38,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-01 22:30:38,145 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 22:30:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-01 22:30:38,147 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2024-11-01 22:30:38,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 22:30:38,148 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-01 22:30:38,148 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 22:30:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-01 22:30:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-01 22:30:38,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 22:30:38,149 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-01 22:30:38,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-01 22:30:38,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:30:38,352 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 22:30:38,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 22:30:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 1 times [2024-11-01 22:30:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 22:30:38,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258863844] [2024-11-01 22:30:38,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 22:30:38,354 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 22:30:38,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:30:38,356 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 22:30:38,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 22:30:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 22:30:38,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-01 22:30:38,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 22:30:39,673 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 22:30:39,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 22:31:18,130 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_7~0#1|)))))) (.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse72 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_15~0#1|))) (or (not (= |c_ULTIMATE.start_main_~var_12~0#1| ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse1)))))))))))))))) (let ((.cse43 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_71~0#1|)) (.cse59 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse72)))))))) (let ((.cse3 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_46~0#1|)) (.cse62 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_69~0#1|))))))))) (.cse61 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse59)))) (.cse44 ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) |c_ULTIMATE.start_main_~state_73~0#1|) .cse43)))) (.cse50 (= ((_ extract 7 0) (bvand .cse0 .cse1)) (_ bv0 8)))) (let ((.cse26 (not .cse50)) (.cse27 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_8~0#1|)) (.cse40 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_59~0#1|)) (.cse30 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_20~0#1|)) (.cse2 (bvugt .cse44 |c_ULTIMATE.start_main_~var_81~0#1|)) (.cse16 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse71 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse71 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|))))))))))))))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse71 .cse62))))) (_ bv0 8)) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse71))))))))))) (.cse17 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse70 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse70 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|))))))))))))))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse70))))))) (not (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse70 .cse62))))) (_ bv0 8))))))) (.cse6 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse69 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse69 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|)))))))))))))) (not (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse69 .cse62))))) (_ bv0 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse69)))))))))) (.cse8 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse68 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse68 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|)))))))))))))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse68))))))))))) (.cse9 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse67 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse67 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|))))))))))))))) (not (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse67 .cse62))))) (_ bv0 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse67)))))))))) (.cse18 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse66 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse66 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|)))))))))))))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse66 .cse62))))) (_ bv0 8)) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse66)))))))))) (.cse5 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse65 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse65 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|))))))))))))))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse65))))))))))) (.cse15 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse64 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse64 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|))))))))))))))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse64 .cse62))))) (_ bv0 8)) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse64)))))))))) (.cse13 (not .cse3)) (.cse12 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse63 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse63 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|)))))))))))))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse63 .cse62))))) (_ bv0 8)) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse63))))))))))) (.cse10 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_127~0#1| (_ BitVec 8))) (let ((.cse60 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|)))))) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse60 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_127~0#1|)))))))))))))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse60))))))) (not (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse60 .cse62))))) (_ bv0 8)))))))) (let ((.cse48 (= |c_ULTIMATE.start_main_~state_63~0#1| (_ bv0 8))) (.cse46 (and (or (and .cse16 .cse17) .cse13) .cse6 (or .cse8 .cse3) .cse9 .cse18 (or .cse3 .cse5) .cse15 (or .cse13 (and .cse12 .cse10)))) (.cse47 (not .cse2)) (.cse41 (= .cse30 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse59)))))))))))))) (.cse39 (and .cse50 .cse40)) (.cse35 (or .cse50 .cse27)) (.cse19 (or .cse26 .cse27)) (.cse23 (not .cse27)) (.cse25 (not .cse40)) (.cse45 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_16~0#1|))))) (and (or (and (or .cse2 (let ((.cse28 (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_63~0#1|))))) .cse0)))) (.cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse45))))))))))) (and (or (let ((.cse24 (not .cse28))) (let ((.cse21 (or .cse26 .cse25 .cse27)) (.cse20 (or .cse23 .cse24)) (.cse22 (or .cse23 .cse24 .cse25))) (let ((.cse7 (and .cse19 .cse22)) (.cse11 (and .cse21 .cse20)) (.cse4 (and .cse21 .cse22)) (.cse14 (and .cse19 .cse20))) (and (or .cse3 .cse4 .cse5) (or .cse6 .cse7) (or .cse8 .cse3 .cse4) (or .cse9 .cse7) (or (and (or .cse4 .cse10) (or .cse11 .cse12)) .cse13) (or .cse14 .cse15) (or (and (or .cse11 .cse16) (or .cse4 .cse17)) .cse13) (or .cse14 .cse18))))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse29)))))) .cse30)) (or (let ((.cse36 (or (and .cse28 .cse40) .cse23)) (.cse37 (or .cse39 .cse27)) (.cse38 (or .cse28 .cse23))) (let ((.cse34 (and .cse35 .cse38)) (.cse33 (and .cse37 .cse38)) (.cse32 (and .cse37 .cse36)) (.cse31 (and .cse35 .cse36))) (and (or .cse6 .cse31) (or .cse32 .cse8 .cse3) (or (and (or .cse32 .cse17) (or .cse33 .cse16)) .cse13) (or .cse34 .cse15) (or .cse34 .cse18) (or .cse32 .cse3 .cse5) (or (and (or .cse33 .cse12) (or .cse32 .cse10)) .cse13) (or .cse9 .cse31)))) (let ((.cse42 (bvugt ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse43 ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) (bvadd |c_ULTIMATE.start_main_~var_12~0#1| .cse44)))))))))))) |c_ULTIMATE.start_main_~var_81~0#1|))) (and (or .cse41 (not .cse42)) (or .cse42 (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse29)))))))))) .cse30)))))))) (or .cse41 .cse46 .cse47)) .cse48) (or (not .cse48) (let ((.cse49 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse45))))))) (and (or .cse2 .cse46 (= .cse30 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse49))))))) .cse0))))) (or .cse47 (and (or .cse41 (let ((.cse52 (and .cse35 (or .cse23 .cse40))) (.cse51 (and .cse35 .cse40))) (and (or .cse50 .cse18 .cse27) (or .cse50 .cse15 .cse27) (or (and (or .cse51 .cse17) (or .cse39 .cse16 .cse27)) .cse13) (or .cse51 .cse8 .cse3) (or .cse51 .cse3 .cse5) (or .cse52 .cse6) (or .cse52 .cse9) (or (and (or .cse51 .cse10) (or .cse39 .cse12 .cse27)) .cse13)))) (or (let ((.cse57 (or .cse26 .cse25)) (.cse58 (or .cse23 .cse25))) (let ((.cse53 (and .cse19 .cse58)) (.cse55 (and .cse26 .cse23)) (.cse54 (and .cse57 .cse58)) (.cse56 (and .cse57 .cse23))) (and (or .cse6 .cse53) (or .cse54 .cse8 .cse3) (or .cse9 .cse53) (or .cse18 .cse55) (or (and (or .cse16 .cse56) (or .cse54 .cse17)) .cse13) (or .cse54 .cse3 .cse5) (or .cse15 .cse55) (or (and (or .cse54 .cse10) (or .cse56 .cse12)) .cse13)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse49)))))) .cse30)))))))))))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv1 32) .cse72)))))))) is different from false [2024-11-01 22:31:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2024-11-01 22:31:31,233 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 22:31:31,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258863844] [2024-11-01 22:31:31,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [258863844] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 22:31:31,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 22:31:31,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 22:31:31,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438779980] [2024-11-01 22:31:31,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 22:31:31,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 22:31:31,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 22:31:31,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 22:31:31,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=49, Unknown=1, NotChecked=14, Total=90 [2024-11-01 22:31:31,236 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 22:31:32,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 22:31:32,658 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-01 22:31:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-01 22:31:32,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2024-11-01 22:31:32,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 22:31:32,660 INFO L225 Difference]: With dead ends: 24 [2024-11-01 22:31:32,660 INFO L226 Difference]: Without dead ends: 22 [2024-11-01 22:31:32,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=92, Invalid=151, Unknown=1, NotChecked=28, Total=272 [2024-11-01 22:31:32,662 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 22:31:32,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 18 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 15 Unchecked, 0.2s Time] [2024-11-01 22:31:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-01 22:31:32,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2024-11-01 22:31:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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 22:31:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-01 22:31:32,670 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 11 [2024-11-01 22:31:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 22:31:32,670 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-01 22:31:32,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 22:31:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-01 22:31:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-01 22:31:32,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 22:31:32,671 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2024-11-01 22:31:32,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-01 22:31:32,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:31:32,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 22:31:32,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 22:31:32,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1003628899, now seen corresponding path program 2 times [2024-11-01 22:31:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 22:31:32,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190894471] [2024-11-01 22:31:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 22:31:32,874 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 22:31:32,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 22:31:32,875 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 22:31:32,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 22:31:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 22:31:33,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-01 22:31:33,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 22:31:40,219 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 22:31:40,219 INFO L311 TraceCheckSpWp]: Computing backward predicates...