/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 20:02:12,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 20:02:12,572 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 20:02:12,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 20:02:12,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 20:02:12,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 20:02:12,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 20:02:12,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 20:02:12,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 20:02:12,590 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 20:02:12,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 20:02:12,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 20:02:12,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 20:02:12,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 20:02:12,592 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 20:02:12,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 20:02:12,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 20:02:12,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 20:02:12,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 20:02:12,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 20:02:12,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 20:02:12,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 20:02:12,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 20:02:12,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 20:02:12,594 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 20:02:12,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 20:02:12,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 20:02:12,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 20:02:12,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 20:02:12,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:02:12,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 20:02:12,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 20:02:12,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 20:02:12,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 20:02:12,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 20:02:12,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 20:02:12,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 20:02:12,597 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 20:02:12,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 20:02:12,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 20:02:12,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 20:02:12,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 20:02:12,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 20:02:12,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 20:02:12,754 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 20:02:12,755 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 20:02:12,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2023-12-16 20:02:14,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 20:02:14,208 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 20:02:14,209 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2023-12-16 20:02:14,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c299e931e/80f384885ac94008933df00a16c82d1e/FLAGadbcc9a94 [2023-12-16 20:02:14,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c299e931e/80f384885ac94008933df00a16c82d1e [2023-12-16 20:02:14,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 20:02:14,231 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 20:02:14,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 20:02:14,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 20:02:14,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 20:02:14,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:14,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcd7f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14, skipping insertion in model container [2023-12-16 20:02:14,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:14,296 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 20:02:14,452 WARN L239 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.vis_arrays_vsaR_p02.c[1259,1272] [2023-12-16 20:02:14,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:02:14,679 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 20:02:14,688 WARN L239 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.vis_arrays_vsaR_p02.c[1259,1272] [2023-12-16 20:02:14,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:02:14,850 INFO L206 MainTranslator]: Completed translation [2023-12-16 20:02:14,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14 WrapperNode [2023-12-16 20:02:14,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 20:02:14,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 20:02:14,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 20:02:14,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 20:02:14,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:14,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,055 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2378 [2023-12-16 20:02:15,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 20:02:15,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 20:02:15,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 20:02:15,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 20:02:15,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,181 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]. [2023-12-16 20:02:15,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 20:02:15,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 20:02:15,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 20:02:15,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 20:02:15,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (1/1) ... [2023-12-16 20:02:15,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:02:15,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 20:02:15,357 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) [2023-12-16 20:02:15,386 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 [2023-12-16 20:02:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 20:02:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 20:02:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 20:02:15,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 20:02:15,699 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 20:02:15,701 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 20:02:16,999 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 20:02:17,035 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 20:02:17,035 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 20:02:17,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:02:17 BoogieIcfgContainer [2023-12-16 20:02:17,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 20:02:17,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 20:02:17,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 20:02:17,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 20:02:17,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:02:14" (1/3) ... [2023-12-16 20:02:17,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786dfcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:02:17, skipping insertion in model container [2023-12-16 20:02:17,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:14" (2/3) ... [2023-12-16 20:02:17,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786dfcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:02:17, skipping insertion in model container [2023-12-16 20:02:17,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:02:17" (3/3) ... [2023-12-16 20:02:17,041 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c [2023-12-16 20:02:17,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 20:02:17,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 20:02:17,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 20:02:17,089 INFO L357 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, mHoare=true, 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;@41196ce8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 20:02:17,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 20:02:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 1.6675062972292192) internal successors, (662), 398 states have internal predecessors, (662), 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) [2023-12-16 20:02:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-16 20:02:17,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:17,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:17,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:17,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1699924934, now seen corresponding path program 1 times [2023-12-16 20:02:17,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:17,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929058058] [2023-12-16 20:02:17,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:17,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:17,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:17,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929058058] [2023-12-16 20:02:17,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929058058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:17,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:17,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488573738] [2023-12-16 20:02:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:17,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 20:02:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 20:02:17,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 20:02:17,523 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 1.6675062972292192) internal successors, (662), 398 states have internal predecessors, (662), 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 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-12-16 20:02:17,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:17,674 INFO L93 Difference]: Finished difference Result 1115 states and 1854 transitions. [2023-12-16 20:02:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 20:02:17,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2023-12-16 20:02:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:17,693 INFO L225 Difference]: With dead ends: 1115 [2023-12-16 20:02:17,693 INFO L226 Difference]: Without dead ends: 756 [2023-12-16 20:02:17,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 20:02:17,703 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 1789 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:17,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 1978 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:17,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2023-12-16 20:02:17,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 400. [2023-12-16 20:02:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 1.6566416040100251) internal successors, (661), 399 states have internal predecessors, (661), 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) [2023-12-16 20:02:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 661 transitions. [2023-12-16 20:02:17,768 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 661 transitions. Word has length 40 [2023-12-16 20:02:17,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:17,768 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 661 transitions. [2023-12-16 20:02:17,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-12-16 20:02:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 661 transitions. [2023-12-16 20:02:17,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-16 20:02:17,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:17,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:17,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 20:02:17,770 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:17,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:17,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1422194230, now seen corresponding path program 1 times [2023-12-16 20:02:17,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:17,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261353045] [2023-12-16 20:02:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:17,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:17,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:17,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261353045] [2023-12-16 20:02:17,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261353045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:17,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:17,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:17,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501221124] [2023-12-16 20:02:17,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:17,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 20:02:17,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:17,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 20:02:17,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:17,967 INFO L87 Difference]: Start difference. First operand 400 states and 661 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-12-16 20:02:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:17,989 INFO L93 Difference]: Finished difference Result 404 states and 665 transitions. [2023-12-16 20:02:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 20:02:17,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2023-12-16 20:02:17,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:17,991 INFO L225 Difference]: With dead ends: 404 [2023-12-16 20:02:17,991 INFO L226 Difference]: Without dead ends: 402 [2023-12-16 20:02:17,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:18,025 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 1 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:18,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1960 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-12-16 20:02:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2023-12-16 20:02:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 1.653366583541147) internal successors, (663), 401 states have internal predecessors, (663), 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) [2023-12-16 20:02:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 663 transitions. [2023-12-16 20:02:18,034 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 663 transitions. Word has length 41 [2023-12-16 20:02:18,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:18,034 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 663 transitions. [2023-12-16 20:02:18,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-12-16 20:02:18,035 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 663 transitions. [2023-12-16 20:02:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 20:02:18,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:18,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:18,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 20:02:18,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:18,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:18,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1136563424, now seen corresponding path program 1 times [2023-12-16 20:02:18,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:18,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918450340] [2023-12-16 20:02:18,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:18,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:18,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:18,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918450340] [2023-12-16 20:02:18,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918450340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:18,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:18,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 20:02:18,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700387134] [2023-12-16 20:02:18,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:18,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 20:02:18,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:18,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 20:02:18,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 20:02:18,505 INFO L87 Difference]: Start difference. First operand 402 states and 663 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2023-12-16 20:02:18,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:18,658 INFO L93 Difference]: Finished difference Result 1493 states and 2461 transitions. [2023-12-16 20:02:18,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 20:02:18,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2023-12-16 20:02:18,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:18,661 INFO L225 Difference]: With dead ends: 1493 [2023-12-16 20:02:18,662 INFO L226 Difference]: Without dead ends: 1131 [2023-12-16 20:02:18,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-16 20:02:18,665 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 2400 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:18,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 3261 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 20:02:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-16 20:02:18,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 406. [2023-12-16 20:02:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.6493827160493828) internal successors, (668), 405 states have internal predecessors, (668), 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) [2023-12-16 20:02:18,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 668 transitions. [2023-12-16 20:02:18,677 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 668 transitions. Word has length 42 [2023-12-16 20:02:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:18,678 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 668 transitions. [2023-12-16 20:02:18,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2023-12-16 20:02:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 668 transitions. [2023-12-16 20:02:18,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 20:02:18,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:18,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:18,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 20:02:18,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:18,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:18,689 INFO L85 PathProgramCache]: Analyzing trace with hash -636415432, now seen corresponding path program 1 times [2023-12-16 20:02:18,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:18,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854397907] [2023-12-16 20:02:18,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:18,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:18,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:18,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854397907] [2023-12-16 20:02:18,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854397907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:18,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:18,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369744497] [2023-12-16 20:02:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:18,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 20:02:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 20:02:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:18,805 INFO L87 Difference]: Start difference. First operand 406 states and 668 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-12-16 20:02:18,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:18,832 INFO L93 Difference]: Finished difference Result 775 states and 1274 transitions. [2023-12-16 20:02:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 20:02:18,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2023-12-16 20:02:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:18,833 INFO L225 Difference]: With dead ends: 775 [2023-12-16 20:02:18,833 INFO L226 Difference]: Without dead ends: 409 [2023-12-16 20:02:18,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:18,835 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 1 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:18,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1958 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:18,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-12-16 20:02:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 408. [2023-12-16 20:02:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.6461916461916462) internal successors, (670), 407 states have internal predecessors, (670), 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) [2023-12-16 20:02:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 670 transitions. [2023-12-16 20:02:18,841 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 670 transitions. Word has length 42 [2023-12-16 20:02:18,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:18,841 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 670 transitions. [2023-12-16 20:02:18,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-12-16 20:02:18,842 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 670 transitions. [2023-12-16 20:02:18,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 20:02:18,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:18,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:18,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 20:02:18,842 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:18,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:18,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1533738378, now seen corresponding path program 1 times [2023-12-16 20:02:18,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:18,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224657314] [2023-12-16 20:02:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:18,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:19,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:19,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224657314] [2023-12-16 20:02:19,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224657314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:19,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:19,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 20:02:19,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211341572] [2023-12-16 20:02:19,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:19,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 20:02:19,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:19,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 20:02:19,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 20:02:19,056 INFO L87 Difference]: Start difference. First operand 408 states and 670 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-12-16 20:02:19,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:19,173 INFO L93 Difference]: Finished difference Result 789 states and 1294 transitions. [2023-12-16 20:02:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 20:02:19,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2023-12-16 20:02:19,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:19,175 INFO L225 Difference]: With dead ends: 789 [2023-12-16 20:02:19,175 INFO L226 Difference]: Without dead ends: 421 [2023-12-16 20:02:19,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-12-16 20:02:19,176 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 2975 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:19,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2975 Valid, 1530 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:19,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-12-16 20:02:19,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 403. [2023-12-16 20:02:19,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.6492537313432836) internal successors, (663), 402 states have internal predecessors, (663), 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) [2023-12-16 20:02:19,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 663 transitions. [2023-12-16 20:02:19,183 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 663 transitions. Word has length 43 [2023-12-16 20:02:19,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:19,183 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 663 transitions. [2023-12-16 20:02:19,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-12-16 20:02:19,183 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 663 transitions. [2023-12-16 20:02:19,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 20:02:19,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:19,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:19,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 20:02:19,184 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:19,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:19,184 INFO L85 PathProgramCache]: Analyzing trace with hash -986221556, now seen corresponding path program 1 times [2023-12-16 20:02:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:19,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614322101] [2023-12-16 20:02:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:19,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:19,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614322101] [2023-12-16 20:02:19,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614322101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:19,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:19,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 20:02:19,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394947863] [2023-12-16 20:02:19,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:19,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 20:02:19,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:19,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 20:02:19,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 20:02:19,491 INFO L87 Difference]: Start difference. First operand 403 states and 663 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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) [2023-12-16 20:02:19,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:19,959 INFO L93 Difference]: Finished difference Result 780 states and 1281 transitions. [2023-12-16 20:02:19,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 20:02:19,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2023-12-16 20:02:19,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:19,961 INFO L225 Difference]: With dead ends: 780 [2023-12-16 20:02:19,961 INFO L226 Difference]: Without dead ends: 417 [2023-12-16 20:02:19,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 20:02:19,962 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 1210 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:19,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 2100 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 20:02:19,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-12-16 20:02:19,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 403. [2023-12-16 20:02:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.6467661691542288) internal successors, (662), 402 states have internal predecessors, (662), 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) [2023-12-16 20:02:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 662 transitions. [2023-12-16 20:02:19,967 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 662 transitions. Word has length 43 [2023-12-16 20:02:19,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:19,968 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 662 transitions. [2023-12-16 20:02:19,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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) [2023-12-16 20:02:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 662 transitions. [2023-12-16 20:02:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 20:02:19,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:19,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:19,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 20:02:19,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:19,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash -986281138, now seen corresponding path program 1 times [2023-12-16 20:02:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:19,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720107138] [2023-12-16 20:02:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 20:02:19,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-16 20:02:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 20:02:20,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-16 20:02:20,033 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-16 20:02:20,033 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 20:02:20,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 20:02:20,037 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:20,039 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 20:02:20,066 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-16 20:02:20,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:02:20 BoogieIcfgContainer [2023-12-16 20:02:20,076 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 20:02:20,076 INFO L158 Benchmark]: Toolchain (without parser) took 5845.27ms. Allocated memory was 234.9MB in the beginning and 577.8MB in the end (delta: 342.9MB). Free memory was 181.9MB in the beginning and 435.4MB in the end (delta: -253.5MB). Peak memory consumption was 90.1MB. Max. memory is 8.0GB. [2023-12-16 20:02:20,076 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 20:02:20,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.81ms. Allocated memory is still 234.9MB. Free memory was 181.6MB in the beginning and 187.6MB in the end (delta: -6.0MB). Peak memory consumption was 48.0MB. Max. memory is 8.0GB. [2023-12-16 20:02:20,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 204.42ms. Allocated memory is still 234.9MB. Free memory was 187.6MB in the beginning and 138.3MB in the end (delta: 49.3MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2023-12-16 20:02:20,077 INFO L158 Benchmark]: Boogie Preprocessor took 263.67ms. Allocated memory is still 234.9MB. Free memory was 138.3MB in the beginning and 108.5MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 20:02:20,077 INFO L158 Benchmark]: RCFGBuilder took 1714.54ms. Allocated memory was 234.9MB in the beginning and 407.9MB in the end (delta: 173.0MB). Free memory was 108.5MB in the beginning and 301.8MB in the end (delta: -193.3MB). Peak memory consumption was 56.2MB. Max. memory is 8.0GB. [2023-12-16 20:02:20,077 INFO L158 Benchmark]: TraceAbstraction took 3039.28ms. Allocated memory was 407.9MB in the beginning and 577.8MB in the end (delta: 169.9MB). Free memory was 300.7MB in the beginning and 435.4MB in the end (delta: -134.7MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. [2023-12-16 20:02:20,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 618.81ms. Allocated memory is still 234.9MB. Free memory was 181.6MB in the beginning and 187.6MB in the end (delta: -6.0MB). Peak memory consumption was 48.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 204.42ms. Allocated memory is still 234.9MB. Free memory was 187.6MB in the beginning and 138.3MB in the end (delta: 49.3MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 263.67ms. Allocated memory is still 234.9MB. Free memory was 138.3MB in the beginning and 108.5MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1714.54ms. Allocated memory was 234.9MB in the beginning and 407.9MB in the end (delta: 173.0MB). Free memory was 108.5MB in the beginning and 301.8MB in the end (delta: -193.3MB). Peak memory consumption was 56.2MB. Max. memory is 8.0GB. * TraceAbstraction took 3039.28ms. Allocated memory was 407.9MB in the beginning and 577.8MB in the end (delta: 169.9MB). Free memory was 300.7MB in the beginning and 435.4MB in the end (delta: -134.7MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 165. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L35] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 3); [L36] const SORT_45 msb_SORT_45 = (SORT_45)1 << (3 - 1); [L38] const SORT_86 mask_SORT_86 = (SORT_86)-1 >> (sizeof(SORT_86) * 8 - 4); [L39] const SORT_86 msb_SORT_86 = (SORT_86)1 << (4 - 1); [L41] const SORT_143 mask_SORT_143 = (SORT_143)-1 >> (sizeof(SORT_143) * 8 - 32); [L42] const SORT_143 msb_SORT_143 = (SORT_143)1 << (32 - 1); [L44] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 2); [L45] const SORT_167 msb_SORT_167 = (SORT_167)1 << (2 - 1); [L47] const SORT_3 var_7 = 0; [L48] const SORT_1 var_11 = 0; [L49] const SORT_1 var_20 = 1; [L50] const SORT_5 var_32 = 0; [L51] const SORT_45 var_46 = 0; [L52] const SORT_45 var_50 = 2; [L53] const SORT_45 var_54 = 1; [L54] const SORT_45 var_59 = 4; [L55] const SORT_45 var_61 = 5; [L56] const SORT_45 var_65 = 3; [L57] const SORT_3 var_73 = 2; [L58] const SORT_45 var_103 = 7; [L59] const SORT_45 var_108 = 6; [L60] const SORT_143 var_145 = 0; [L61] const SORT_3 var_176 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_164; [L67] SORT_3 input_165; [L68] SORT_3 input_166; [L69] SORT_3 input_175; [L70] SORT_3 input_185; [L71] SORT_3 input_186; [L72] SORT_3 input_187; [L73] SORT_3 input_190; [L74] SORT_3 input_209; [L75] SORT_3 input_210; [L76] SORT_3 input_211; [L77] SORT_3 input_214; [L78] SORT_3 input_216; [L79] SORT_167 input_230; [L80] SORT_167 input_231; [L81] SORT_167 input_232; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L83] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L84] SORT_3 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L85] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L86] SORT_3 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L87] SORT_3 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L88] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L89] SORT_5 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L90] SORT_3 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L91] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L92] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L93] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L94] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_45 VAL [mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L95] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L97] SORT_3 init_9_arg_1 = var_7; [L98] state_8 = init_9_arg_1 [L99] SORT_3 init_14_arg_1 = var_7; [L100] state_13 = init_14_arg_1 [L101] SORT_3 init_25_arg_1 = var_7; [L102] state_24 = init_25_arg_1 [L103] SORT_3 init_27_arg_1 = var_7; [L104] state_26 = init_27_arg_1 [L105] SORT_3 init_29_arg_1 = var_7; [L106] state_28 = init_29_arg_1 [L107] SORT_1 init_31_arg_1 = var_11; [L108] state_30 = init_31_arg_1 [L109] SORT_5 init_34_arg_1 = var_32; [L110] state_33 = init_34_arg_1 [L111] SORT_3 init_36_arg_1 = var_7; [L112] state_35 = init_36_arg_1 [L113] SORT_3 init_38_arg_1 = var_7; [L114] state_37 = init_38_arg_1 [L115] SORT_3 init_40_arg_1 = var_7; [L116] state_39 = init_40_arg_1 [L117] SORT_3 init_42_arg_1 = var_7; [L118] state_41 = init_42_arg_1 [L119] SORT_3 init_44_arg_1 = var_7; [L120] state_43 = init_44_arg_1 [L121] SORT_45 init_48_arg_1 = var_46; [L122] state_47 = init_48_arg_1 VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_164 = __VERIFIER_nondet_uchar() [L129] input_165 = __VERIFIER_nondet_uchar() [L130] input_166 = __VERIFIER_nondet_uchar() [L131] input_175 = __VERIFIER_nondet_uchar() [L132] input_185 = __VERIFIER_nondet_uchar() [L133] input_186 = __VERIFIER_nondet_uchar() [L134] input_187 = __VERIFIER_nondet_uchar() [L135] input_190 = __VERIFIER_nondet_uchar() [L136] input_209 = __VERIFIER_nondet_uchar() [L137] input_210 = __VERIFIER_nondet_uchar() [L138] input_211 = __VERIFIER_nondet_uchar() [L139] input_214 = __VERIFIER_nondet_uchar() [L140] input_216 = __VERIFIER_nondet_uchar() [L141] input_230 = __VERIFIER_nondet_uchar() [L142] input_231 = __VERIFIER_nondet_uchar() [L143] input_232 = __VERIFIER_nondet_uchar() [L146] SORT_3 var_10_arg_0 = state_8; [L147] SORT_1 var_10 = var_10_arg_0 >> 0; VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L148] EXPR var_10 & mask_SORT_1 VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L148] var_10 = var_10 & mask_SORT_1 [L149] SORT_1 var_12_arg_0 = var_10; [L150] SORT_1 var_12_arg_1 = var_11; [L151] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L152] SORT_3 var_15_arg_0 = state_13; [L153] SORT_1 var_15 = var_15_arg_0 >> 0; VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_12=1, var_12_arg_0=0, var_12_arg_1=0, var_145=0, var_15=0, var_15_arg_0=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L154] EXPR var_15 & mask_SORT_1 VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_12=1, var_12_arg_0=0, var_12_arg_1=0, var_145=0, var_15=0, var_15_arg_0=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L154] var_15 = var_15 & mask_SORT_1 [L155] SORT_1 var_16_arg_0 = var_15; [L156] SORT_1 var_16_arg_1 = var_11; [L157] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L158] SORT_1 var_17_arg_0 = var_12; [L159] SORT_1 var_17_arg_1 = var_16; VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_12=1, var_12_arg_0=0, var_12_arg_1=0, var_145=0, var_15=0, var_15_arg_0=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_176=31, var_17_arg_0=1, var_17_arg_1=1, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L160] EXPR var_17_arg_0 & var_17_arg_1 VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_12=1, var_12_arg_0=0, var_12_arg_1=0, var_145=0, var_15=0, var_15_arg_0=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_176=31, var_17_arg_0=1, var_17_arg_1=1, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L160] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L161] SORT_1 var_21_arg_0 = var_17; [L162] SORT_1 var_21 = ~var_21_arg_0; [L163] SORT_1 var_22_arg_0 = var_20; [L164] SORT_1 var_22_arg_1 = var_21; VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_12=1, var_12_arg_0=0, var_12_arg_1=0, var_145=0, var_15=0, var_15_arg_0=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_176=31, var_17=1, var_17_arg_0=1, var_17_arg_1=1, var_20=1, var_21=254, var_21_arg_0=1, var_22_arg_0=1, var_22_arg_1=254, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L165] EXPR var_22_arg_0 & var_22_arg_1 VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_12=1, var_12_arg_0=0, var_12_arg_1=0, var_145=0, var_15=0, var_15_arg_0=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_176=31, var_17=1, var_17_arg_0=1, var_17_arg_1=1, var_20=1, var_21=254, var_21_arg_0=1, var_22_arg_0=1, var_22_arg_1=254, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L165] SORT_1 var_22 = var_22_arg_0 & var_22_arg_1; [L166] EXPR var_22 & mask_SORT_1 VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_10_arg_0=0, var_11=0, var_12=1, var_12_arg_0=0, var_12_arg_1=0, var_145=0, var_15=0, var_15_arg_0=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_176=31, var_17=1, var_17_arg_0=1, var_17_arg_1=1, var_20=1, var_21=254, var_21_arg_0=1, var_22=1, var_22_arg_0=1, var_22_arg_1=254, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L166] var_22 = var_22 & mask_SORT_1 [L167] SORT_1 bad_23_arg_0 = var_22; [L168] CALL __VERIFIER_assert(!(bad_23_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 399 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8376 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8376 mSDsluCounter, 12787 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8990 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 825 IncrementalHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 3797 mSDtfsCounter, 825 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=4, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1114 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 843 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-16 20:02:20,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...