/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 04:44:47,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 04:44:47,219 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 04:44:47,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 04:44:47,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 04:44:47,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 04:44:47,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 04:44:47,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 04:44:47,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 04:44:47,256 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 04:44:47,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 04:44:47,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 04:44:47,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 04:44:47,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 04:44:47,258 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 04:44:47,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 04:44:47,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 04:44:47,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 04:44:47,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 04:44:47,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 04:44:47,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 04:44:47,260 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 04:44:47,261 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 04:44:47,261 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 04:44:47,261 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 04:44:47,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 04:44:47,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 04:44:47,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 04:44:47,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 04:44:47,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 04:44:47,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 04:44:47,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 04:44:47,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 04:44:47,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 04:44:47,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 04:44:47,264 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 04:44:47,268 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 04:44:47,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 04:44:47,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 04:44:47,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 04:44:47,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 04:44:47,269 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 04:44:47,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 04:44:47,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 04:44:47,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 04:44:47,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 04:44:47,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 04:44:47,537 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 04:44:47,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v6.c [2024-11-01 04:44:48,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 04:44:48,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 04:44:48,940 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v6.c [2024-11-01 04:44:48,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a209a2cb/bd76840e574e4c9b98e121e65945e35b/FLAGa8fcd7686 [2024-11-01 04:44:48,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a209a2cb/bd76840e574e4c9b98e121e65945e35b [2024-11-01 04:44:48,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 04:44:48,966 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 04:44:48,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 04:44:48,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 04:44:48,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 04:44:48,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 04:44:48" (1/1) ... [2024-11-01 04:44:48,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ca80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:48, skipping insertion in model container [2024-11-01 04:44:48,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 04:44:48" (1/1) ... [2024-11-01 04:44:48,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 04:44:49,144 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.eq_sdp_v6.c[1249,1262] [2024-11-01 04:44:49,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 04:44:49,224 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 04:44:49,235 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.eq_sdp_v6.c[1249,1262] [2024-11-01 04:44:49,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 04:44:49,302 INFO L204 MainTranslator]: Completed translation [2024-11-01 04:44:49,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49 WrapperNode [2024-11-01 04:44:49,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 04:44:49,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 04:44:49,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 04:44:49,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 04:44:49,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,358 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 359 [2024-11-01 04:44:49,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 04:44:49,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 04:44:49,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 04:44:49,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 04:44:49,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,391 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 04:44:49,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 04:44:49,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 04:44:49,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 04:44:49,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 04:44:49,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (1/1) ... [2024-11-01 04:44:49,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 04:44:49,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 04:44:49,438 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 04:44:49,440 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 04:44:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 04:44:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 04:44:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 04:44:49,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 04:44:49,568 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 04:44:49,570 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 04:44:49,860 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-01 04:44:49,860 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 04:44:49,867 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 04:44:49,867 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 04:44:49,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 04:44:49 BoogieIcfgContainer [2024-11-01 04:44:49,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 04:44:49,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 04:44:49,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 04:44:49,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 04:44:49,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 04:44:48" (1/3) ... [2024-11-01 04:44:49,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de939f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 04:44:49, skipping insertion in model container [2024-11-01 04:44:49,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 04:44:49" (2/3) ... [2024-11-01 04:44:49,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de939f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 04:44:49, skipping insertion in model container [2024-11-01 04:44:49,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 04:44:49" (3/3) ... [2024-11-01 04:44:49,874 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.eq_sdp_v6.c [2024-11-01 04:44:49,885 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 04:44:49,885 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 04:44:49,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 04:44:49,930 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;@5db22c9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 04:44:49,931 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 04:44:49,934 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 04:44:49,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 04:44:49,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 04:44:49,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 04:44:49,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 04:44:49,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 04:44:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 04:44:49,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 04:44:49,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334129729] [2024-11-01 04:44:49,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 04:44:49,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 04:44:49,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 04:44:49,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 04:44:49,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-01 04:44:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 04:44:50,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-01 04:44:50,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 04:44:50,395 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 04:44:50,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 04:44:50,832 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 04:44:50,833 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 04:44:50,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334129729] [2024-11-01 04:44:50,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1334129729] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 04:44:50,834 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 04:44:50,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 04:44:50,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096552796] [2024-11-01 04:44:50,836 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 04:44:50,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 04:44:50,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 04:44:50,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 04:44:50,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 04:44:50,855 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 04:44:50,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 04:44:50,893 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2024-11-01 04:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 04:44:50,895 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 04:44:50,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 04:44:50,900 INFO L225 Difference]: With dead ends: 17 [2024-11-01 04:44:50,900 INFO L226 Difference]: Without dead ends: 9 [2024-11-01 04:44:50,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 04:44:50,905 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 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 04:44:50,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 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 04:44:50,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-01 04:44:50,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-01 04:44:50,924 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 04:44:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 04:44:50,926 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 04:44:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 04:44:50,926 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 04:44:50,926 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 04:44:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 04:44:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 04:44:50,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 04:44:50,927 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 04:44:50,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-01 04:44:51,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 04:44:51,132 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 04:44:51,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 04:44:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 04:44:51,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 04:44:51,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496771068] [2024-11-01 04:44:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 04:44:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 04:44:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 04:44:51,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 04:44:51,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-01 04:44:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 04:44:51,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-01 04:44:51,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 04:44:51,607 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 04:44:51,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 04:44:58,891 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse40 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_5~0#1|))) (let ((.cse8 (forall ((|v_ULTIMATE.start_main_~var_33_arg_0~0#1_11| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse40 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_33_arg_0~0#1_11|))))))))) (.cse6 (forall ((|v_ULTIMATE.start_main_~var_33_arg_0~0#1_11| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_33_arg_0~0#1_11|)))) .cse40)) (_ bv0 8)))) (.cse43 (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_22~0#1|))) .cse40)))) (.cse31 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_9~0#1|)))) (.cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_64~0#1|))))) (let ((.cse16 (= (_ bv0 8) ((_ extract 7 0) (bvand .cse40 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_43~0#1|))))))) (.cse15 (= (_ bv0 8) ((_ extract 7 0) (bvand .cse40 ((_ zero_extend 24) ((_ extract 7 0) .cse29)))))) (.cse13 (bvneg ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_72~0#1|))))) (.cse33 (bvneg .cse31)) (.cse35 (not .cse43)) (.cse30 (or (and (or .cse8 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse41 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_11|))) .cse41))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse31 .cse41))))))) (or (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse42 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_11|))) .cse42))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse31 .cse42))))))) .cse6)) .cse43)) (.cse36 (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse31)) .cse40)) (_ bv0 8)))) (let ((.cse10 (or (and (or (let ((.cse38 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse33 .cse31))))) .cse33))))))) (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse37 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse31 .cse37))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse38 .cse37)))))) .cse8) (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse39 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse31 .cse39))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse38 .cse39))))))) .cse6))) .cse35) .cse30) (not .cse36))) (.cse11 (or (and .cse30 (or (and (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse32 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse31 .cse32))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_11|))) .cse33))))) .cse32)))))))) (or .cse8 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse34 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse31 .cse34))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_11|))) .cse33))))) .cse34)))))))) .cse35)) .cse36)) (.cse5 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse29 (bvneg ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_68~0#1|))))))))))))))) (.cse1 (not .cse15)) (.cse2 (not .cse16)) (.cse20 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_59~0#1|)) (.cse19 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_55~0#1|)) (.cse0 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_57~0#1|))) (and (or .cse0 (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse19 .cse20))))))))) (let ((.cse9 (or .cse16 (and (or (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse17 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 .cse17))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_11|))) .cse17)))))) .cse8) (or (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse18 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 .cse18))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_11|))) .cse18))))))) .cse6))))) (and (or .cse1 (and (or .cse2 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 .cse4))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse4))))))) .cse6) (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse7 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 .cse7))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse7)))))) .cse8))) .cse9)) .cse10 .cse11 (or (and .cse9 (or .cse2 (and (or (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse12 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 .cse12))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_11|)))))))) .cse12))))))) .cse6) (or .cse8 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse14 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 .cse14))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_11|)))))))) .cse14)))))))))) .cse15))))) (or (let ((.cse21 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse20 (bvneg .cse19)))))))))) (let ((.cse24 (or .cse16 (and (or .cse8 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse27 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_11|))) .cse27))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse27))))))) (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse28 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_11|))) .cse28))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse28)))))))))))) (and .cse10 .cse11 (or (and (or .cse2 (and (or .cse8 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse22 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse22))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse22))))))) (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse23 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse23))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse23))))))) .cse6))) .cse24) .cse1) (or (and (or .cse2 (and (or (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse25 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_11|)))))))) .cse25))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse25)))))) .cse8) (or (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_11| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse26 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_11|)))))))) .cse26))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse26))))))) .cse6))) .cse24) .cse15)))) (not .cse0))))))) is different from false [2024-11-01 04:45:12,727 WARN L286 SmtUtils]: Spent 6.58s on a formula simplification that was a NOOP. DAG size: 247 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-01 04:45:19,478 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 04:45:19,479 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 04:45:19,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496771068] [2024-11-01 04:45:19,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1496771068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 04:45:19,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 04:45:19,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 04:45:19,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402420871] [2024-11-01 04:45:19,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 04:45:19,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 04:45:19,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 04:45:19,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 04:45:19,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=53, Unknown=1, NotChecked=14, Total=90 [2024-11-01 04:45:19,482 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 04:45:22,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 04:45:22,940 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-01 04:45:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-01 04:45:22,942 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 04:45:22,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 04:45:22,942 INFO L225 Difference]: With dead ends: 14 [2024-11-01 04:45:22,942 INFO L226 Difference]: Without dead ends: 12 [2024-11-01 04:45:22,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=35, Invalid=78, Unknown=1, NotChecked=18, Total=132 [2024-11-01 04:45:22,944 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-01 04:45:22,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 6 Unchecked, 1.0s Time] [2024-11-01 04:45:22,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-01 04:45:22,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-01 04:45:22,946 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 04:45:22,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-01 04:45:22,947 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-01 04:45:22,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 04:45:22,947 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-01 04:45:22,947 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 04:45:22,947 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-01 04:45:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-01 04:45:22,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 04:45:22,947 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-01 04:45:22,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-01 04:45:23,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 04:45:23,149 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 04:45:23,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 04:45:23,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-01 04:45:23,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 04:45:23,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434890223] [2024-11-01 04:45:23,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 04:45:23,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 04:45:23,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 04:45:23,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 04:45:23,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-01 04:45:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 04:45:23,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-01 04:45:23,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 04:45:36,485 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 04:45:36,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 04:46:10,899 WARN L286 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)