/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.diagonal_v.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:21:25,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:21:25,860 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 19:21:25,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:21:25,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:21:25,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:21:25,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:21:25,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:21:25,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:21:25,879 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:21:25,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:21:25,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:21:25,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:21:25,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:21:25,880 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:21:25,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:21:25,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:21:25,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:21:25,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:21:25,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:21:25,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:21:25,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:21:25,882 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:21:25,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:21:25,882 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:21:25,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:21:25,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:21:25,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:21:25,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:21:25,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:21:25,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:21:25,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:21:25,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:21:25,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:21:25,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:21:25,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:21:25,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:21:25,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:21:25,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:21:25,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:21:25,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:21:26,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:21:26,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:21:26,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:21:26,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:21:26,099 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:21:26,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2023-12-16 19:21:27,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:21:27,269 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:21:27,270 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2023-12-16 19:21:27,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312ad3273/3fa7762ce78345ae8c4be64a5d535269/FLAG70f5eec52 [2023-12-16 19:21:27,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312ad3273/3fa7762ce78345ae8c4be64a5d535269 [2023-12-16 19:21:27,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:21:27,295 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:21:27,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:21:27,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:21:27,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:21:27,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2c058d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27, skipping insertion in model container [2023-12-16 19:21:27,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:21:27,455 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.diagonal_v.c[1250,1263] [2023-12-16 19:21:27,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:21:27,519 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:21:27,527 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.diagonal_v.c[1250,1263] [2023-12-16 19:21:27,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:21:27,571 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:21:27,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27 WrapperNode [2023-12-16 19:21:27,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:21:27,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:21:27,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:21:27,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:21:27,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,644 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 325 [2023-12-16 19:21:27,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:21:27,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:21:27,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:21:27,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:21:27,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,661 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,687 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 19:21:27,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:21:27,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:21:27,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:21:27,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:21:27,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (1/1) ... [2023-12-16 19:21:27,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:21:27,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:21:27,746 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 19:21:27,753 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 19:21:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:21:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:21:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:21:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:21:27,832 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:21:27,834 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:21:28,107 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:21:28,155 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:21:28,155 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:21:28,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:21:28 BoogieIcfgContainer [2023-12-16 19:21:28,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:21:28,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:21:28,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:21:28,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:21:28,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:21:27" (1/3) ... [2023-12-16 19:21:28,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9c4b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:21:28, skipping insertion in model container [2023-12-16 19:21:28,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:21:27" (2/3) ... [2023-12-16 19:21:28,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9c4b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:21:28, skipping insertion in model container [2023-12-16 19:21:28,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:21:28" (3/3) ... [2023-12-16 19:21:28,161 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal_v.c [2023-12-16 19:21:28,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:21:28,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:21:28,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:21:28,218 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;@6a46b123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:21:28,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:21:28,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 59 states have internal predecessors, (96), 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 19:21:28,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-16 19:21:28,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:28,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:28,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:28,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:28,234 INFO L85 PathProgramCache]: Analyzing trace with hash 3492088, now seen corresponding path program 1 times [2023-12-16 19:21:28,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:28,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709359537] [2023-12-16 19:21:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:28,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:28,605 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 19:21:28,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:28,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709359537] [2023-12-16 19:21:28,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709359537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:28,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:28,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:21:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383647430] [2023-12-16 19:21:28,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:28,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:21:28,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:28,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:21:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:21:28,633 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 59 states have internal predecessors, (96), 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 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:21:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:28,687 INFO L93 Difference]: Finished difference Result 113 states and 183 transitions. [2023-12-16 19:21:28,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:21:28,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-16 19:21:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:28,694 INFO L225 Difference]: With dead ends: 113 [2023-12-16 19:21:28,694 INFO L226 Difference]: Without dead ends: 60 [2023-12-16 19:21:28,696 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 19:21:28,698 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 262 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 19:21:28,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 262 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:21:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-16 19:21:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-12-16 19:21:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 59 states have internal predecessors, (94), 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 19:21:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 94 transitions. [2023-12-16 19:21:28,726 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 94 transitions. Word has length 12 [2023-12-16 19:21:28,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:28,726 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 94 transitions. [2023-12-16 19:21:28,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:21:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 94 transitions. [2023-12-16 19:21:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-16 19:21:28,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:28,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:28,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:21:28,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:28,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:28,728 INFO L85 PathProgramCache]: Analyzing trace with hash 109979724, now seen corresponding path program 1 times [2023-12-16 19:21:28,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:28,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670832387] [2023-12-16 19:21:28,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:28,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:28,843 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 19:21:28,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:28,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670832387] [2023-12-16 19:21:28,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670832387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:28,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:28,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:21:28,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746951335] [2023-12-16 19:21:28,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:28,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:21:28,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:21:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:21:28,850 INFO L87 Difference]: Start difference. First operand 60 states and 94 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:21:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:28,886 INFO L93 Difference]: Finished difference Result 116 states and 181 transitions. [2023-12-16 19:21:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:21:28,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-16 19:21:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:28,891 INFO L225 Difference]: With dead ends: 116 [2023-12-16 19:21:28,891 INFO L226 Difference]: Without dead ends: 63 [2023-12-16 19:21:28,891 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 19:21:28,892 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 260 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 19:21:28,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 260 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:21:28,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-16 19:21:28,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2023-12-16 19:21:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 61 states have internal predecessors, (96), 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 19:21:28,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions. [2023-12-16 19:21:28,896 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 13 [2023-12-16 19:21:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:28,897 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 96 transitions. [2023-12-16 19:21:28,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:21:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions. [2023-12-16 19:21:28,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-16 19:21:28,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:28,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:28,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:21:28,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:28,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:28,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1096028270, now seen corresponding path program 1 times [2023-12-16 19:21:28,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:28,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160730368] [2023-12-16 19:21:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:28,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:29,146 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 19:21:29,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:29,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160730368] [2023-12-16 19:21:29,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160730368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:29,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:29,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:21:29,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278222346] [2023-12-16 19:21:29,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:29,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:21:29,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:29,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:21:29,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:21:29,152 INFO L87 Difference]: Start difference. First operand 62 states and 96 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:21:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:29,266 INFO L93 Difference]: Finished difference Result 165 states and 256 transitions. [2023-12-16 19:21:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:21:29,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-16 19:21:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:29,270 INFO L225 Difference]: With dead ends: 165 [2023-12-16 19:21:29,270 INFO L226 Difference]: Without dead ends: 110 [2023-12-16 19:21:29,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:29,274 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 306 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:29,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 245 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:21:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-16 19:21:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 64. [2023-12-16 19:21:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.5555555555555556) internal successors, (98), 63 states have internal predecessors, (98), 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 19:21:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 98 transitions. [2023-12-16 19:21:29,280 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 98 transitions. Word has length 14 [2023-12-16 19:21:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:29,280 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 98 transitions. [2023-12-16 19:21:29,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:21:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 98 transitions. [2023-12-16 19:21:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 19:21:29,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:29,287 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 19:21:29,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:21:29,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:29,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:29,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1627807962, now seen corresponding path program 1 times [2023-12-16 19:21:29,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:29,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833700615] [2023-12-16 19:21:29,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:29,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:29,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:29,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833700615] [2023-12-16 19:21:29,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833700615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:29,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:29,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 19:21:29,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400556037] [2023-12-16 19:21:29,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:29,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:21:29,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:29,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:21:29,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:21:29,579 INFO L87 Difference]: Start difference. First operand 64 states and 98 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 19:21:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:29,633 INFO L93 Difference]: Finished difference Result 119 states and 183 transitions. [2023-12-16 19:21:29,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:21:29,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2023-12-16 19:21:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:29,635 INFO L225 Difference]: With dead ends: 119 [2023-12-16 19:21:29,635 INFO L226 Difference]: Without dead ends: 64 [2023-12-16 19:21:29,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:21:29,640 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 79 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:29,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 127 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:21:29,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-16 19:21:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-16 19:21:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 63 states have internal predecessors, (97), 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 19:21:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 97 transitions. [2023-12-16 19:21:29,656 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 97 transitions. Word has length 49 [2023-12-16 19:21:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:29,656 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 97 transitions. [2023-12-16 19:21:29,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 19:21:29,656 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 97 transitions. [2023-12-16 19:21:29,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 19:21:29,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:29,657 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1] [2023-12-16 19:21:29,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:21:29,658 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:29,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash -102537090, now seen corresponding path program 1 times [2023-12-16 19:21:29,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:29,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141825632] [2023-12-16 19:21:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:29,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141825632] [2023-12-16 19:21:29,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141825632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:29,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:29,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:21:29,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419613383] [2023-12-16 19:21:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:29,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:21:29,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:29,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:21:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:21:29,903 INFO L87 Difference]: Start difference. First operand 64 states and 97 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 19:21:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:30,031 INFO L93 Difference]: Finished difference Result 164 states and 251 transitions. [2023-12-16 19:21:30,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:21:30,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2023-12-16 19:21:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:30,033 INFO L225 Difference]: With dead ends: 164 [2023-12-16 19:21:30,033 INFO L226 Difference]: Without dead ends: 109 [2023-12-16 19:21:30,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:21:30,036 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 216 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:30,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 260 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:21:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-16 19:21:30,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 81. [2023-12-16 19:21:30,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 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 19:21:30,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 120 transitions. [2023-12-16 19:21:30,049 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 120 transitions. Word has length 50 [2023-12-16 19:21:30,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:30,050 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 120 transitions. [2023-12-16 19:21:30,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 19:21:30,050 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 120 transitions. [2023-12-16 19:21:30,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 19:21:30,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:30,051 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1] [2023-12-16 19:21:30,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 19:21:30,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:30,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:30,052 INFO L85 PathProgramCache]: Analyzing trace with hash 930407213, now seen corresponding path program 1 times [2023-12-16 19:21:30,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:30,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827475480] [2023-12-16 19:21:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:30,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:30,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827475480] [2023-12-16 19:21:30,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827475480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:30,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:30,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:21:30,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678987285] [2023-12-16 19:21:30,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:30,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:21:30,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:21:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:21:30,302 INFO L87 Difference]: Start difference. First operand 81 states and 120 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 19:21:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:30,401 INFO L93 Difference]: Finished difference Result 164 states and 250 transitions. [2023-12-16 19:21:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:21:30,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2023-12-16 19:21:30,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:30,403 INFO L225 Difference]: With dead ends: 164 [2023-12-16 19:21:30,403 INFO L226 Difference]: Without dead ends: 109 [2023-12-16 19:21:30,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:21:30,404 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 212 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:30,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 171 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:21:30,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-16 19:21:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 82. [2023-12-16 19:21:30,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.4938271604938271) internal successors, (121), 81 states have internal predecessors, (121), 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 19:21:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 121 transitions. [2023-12-16 19:21:30,417 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 121 transitions. Word has length 51 [2023-12-16 19:21:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:30,419 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 121 transitions. [2023-12-16 19:21:30,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 19:21:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 121 transitions. [2023-12-16 19:21:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 19:21:30,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:30,420 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1] [2023-12-16 19:21:30,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 19:21:30,420 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:30,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1978356689, now seen corresponding path program 1 times [2023-12-16 19:21:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:30,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116446567] [2023-12-16 19:21:30,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:30,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:30,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:30,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116446567] [2023-12-16 19:21:30,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116446567] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 19:21:30,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037775436] [2023-12-16 19:21:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:30,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:21:30,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:21:30,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:21:30,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 19:21:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:30,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-16 19:21:30,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:21:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:31,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:21:31,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037775436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:31,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 19:21:31,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2023-12-16 19:21:31,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938165238] [2023-12-16 19:21:31,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:31,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 19:21:31,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:31,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 19:21:31,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-16 19:21:31,281 INFO L87 Difference]: Start difference. First operand 82 states and 121 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 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 19:21:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:31,700 INFO L93 Difference]: Finished difference Result 235 states and 355 transitions. [2023-12-16 19:21:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 19:21:31,700 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 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 51 [2023-12-16 19:21:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:31,701 INFO L225 Difference]: With dead ends: 235 [2023-12-16 19:21:31,701 INFO L226 Difference]: Without dead ends: 180 [2023-12-16 19:21:31,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2023-12-16 19:21:31,702 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 534 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:31,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 397 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:21:31,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-16 19:21:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 90. [2023-12-16 19:21:31,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.4719101123595506) internal successors, (131), 89 states have internal predecessors, (131), 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 19:21:31,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2023-12-16 19:21:31,705 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 51 [2023-12-16 19:21:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:31,705 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2023-12-16 19:21:31,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 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 19:21:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2023-12-16 19:21:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 19:21:31,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:31,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1] [2023-12-16 19:21:31,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 19:21:31,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:21:31,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:31,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:31,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2109207099, now seen corresponding path program 1 times [2023-12-16 19:21:31,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:31,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897369255] [2023-12-16 19:21:31,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:31,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897369255] [2023-12-16 19:21:32,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897369255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:32,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:32,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 19:21:32,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414025039] [2023-12-16 19:21:32,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:32,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:21:32,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:21:32,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:32,235 INFO L87 Difference]: Start difference. First operand 90 states and 131 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 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 19:21:32,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:32,513 INFO L93 Difference]: Finished difference Result 256 states and 382 transitions. [2023-12-16 19:21:32,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 19:21:32,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2023-12-16 19:21:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:32,515 INFO L225 Difference]: With dead ends: 256 [2023-12-16 19:21:32,516 INFO L226 Difference]: Without dead ends: 201 [2023-12-16 19:21:32,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-12-16 19:21:32,516 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 352 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:32,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 663 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:21:32,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-16 19:21:32,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 130. [2023-12-16 19:21:32,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4728682170542635) internal successors, (190), 129 states have internal predecessors, (190), 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 19:21:32,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 190 transitions. [2023-12-16 19:21:32,520 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 190 transitions. Word has length 52 [2023-12-16 19:21:32,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:32,521 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 190 transitions. [2023-12-16 19:21:32,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 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 19:21:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 190 transitions. [2023-12-16 19:21:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 19:21:32,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:32,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1] [2023-12-16 19:21:32,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 19:21:32,522 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:32,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:32,522 INFO L85 PathProgramCache]: Analyzing trace with hash 513429857, now seen corresponding path program 1 times [2023-12-16 19:21:32,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:32,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950970075] [2023-12-16 19:21:32,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:32,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:32,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:32,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:32,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950970075] [2023-12-16 19:21:32,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950970075] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 19:21:32,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011749999] [2023-12-16 19:21:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:32,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:21:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:21:32,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:21:32,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 19:21:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:32,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-16 19:21:32,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:21:33,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:33,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:21:33,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011749999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:33,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 19:21:33,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2023-12-16 19:21:33,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376977120] [2023-12-16 19:21:33,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:33,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 19:21:33,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:33,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 19:21:33,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-12-16 19:21:33,259 INFO L87 Difference]: Start difference. First operand 130 states and 190 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 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 19:21:33,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:33,581 INFO L93 Difference]: Finished difference Result 211 states and 313 transitions. [2023-12-16 19:21:33,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 19:21:33,581 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 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 52 [2023-12-16 19:21:33,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:33,582 INFO L225 Difference]: With dead ends: 211 [2023-12-16 19:21:33,582 INFO L226 Difference]: Without dead ends: 156 [2023-12-16 19:21:33,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2023-12-16 19:21:33,583 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 245 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:33,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 354 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:21:33,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-16 19:21:33,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 140. [2023-12-16 19:21:33,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.4676258992805755) internal successors, (204), 139 states have internal predecessors, (204), 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 19:21:33,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 204 transitions. [2023-12-16 19:21:33,587 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 204 transitions. Word has length 52 [2023-12-16 19:21:33,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:33,587 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 204 transitions. [2023-12-16 19:21:33,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 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 19:21:33,587 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 204 transitions. [2023-12-16 19:21:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 19:21:33,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:33,588 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1] [2023-12-16 19:21:33,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 19:21:33,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-16 19:21:33,792 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:33,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:33,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1156070035, now seen corresponding path program 1 times [2023-12-16 19:21:33,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:33,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492046808] [2023-12-16 19:21:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:33,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:34,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:34,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492046808] [2023-12-16 19:21:34,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492046808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:34,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:34,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:21:34,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840653905] [2023-12-16 19:21:34,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:34,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:21:34,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:34,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:21:34,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:21:34,079 INFO L87 Difference]: Start difference. First operand 140 states and 204 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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 19:21:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:34,184 INFO L93 Difference]: Finished difference Result 203 states and 299 transitions. [2023-12-16 19:21:34,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:21:34,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2023-12-16 19:21:34,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:34,185 INFO L225 Difference]: With dead ends: 203 [2023-12-16 19:21:34,185 INFO L226 Difference]: Without dead ends: 146 [2023-12-16 19:21:34,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:34,186 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 139 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:34,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 367 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:21:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-12-16 19:21:34,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2023-12-16 19:21:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.4642857142857142) internal successors, (205), 140 states have internal predecessors, (205), 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 19:21:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 205 transitions. [2023-12-16 19:21:34,189 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 205 transitions. Word has length 53 [2023-12-16 19:21:34,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:34,189 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 205 transitions. [2023-12-16 19:21:34,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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 19:21:34,189 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 205 transitions. [2023-12-16 19:21:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 19:21:34,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:34,190 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1] [2023-12-16 19:21:34,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 19:21:34,190 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:34,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:34,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1742876049, now seen corresponding path program 1 times [2023-12-16 19:21:34,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:34,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559955171] [2023-12-16 19:21:34,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:34,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:34,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:34,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559955171] [2023-12-16 19:21:34,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559955171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:34,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:34,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 19:21:34,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639376919] [2023-12-16 19:21:34,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:34,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 19:21:34,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:34,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 19:21:34,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 19:21:34,445 INFO L87 Difference]: Start difference. First operand 141 states and 205 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 19:21:34,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:34,452 INFO L93 Difference]: Finished difference Result 199 states and 292 transitions. [2023-12-16 19:21:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 19:21:34,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-16 19:21:34,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:34,453 INFO L225 Difference]: With dead ends: 199 [2023-12-16 19:21:34,453 INFO L226 Difference]: Without dead ends: 141 [2023-12-16 19:21:34,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 19:21:34,454 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 78 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:34,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 203 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:21:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-16 19:21:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-12-16 19:21:34,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.4357142857142857) internal successors, (201), 140 states have internal predecessors, (201), 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 19:21:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 201 transitions. [2023-12-16 19:21:34,457 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 201 transitions. Word has length 53 [2023-12-16 19:21:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:34,457 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 201 transitions. [2023-12-16 19:21:34,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 19:21:34,458 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 201 transitions. [2023-12-16 19:21:34,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 19:21:34,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:34,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1] [2023-12-16 19:21:34,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 19:21:34,458 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:34,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:34,459 INFO L85 PathProgramCache]: Analyzing trace with hash 2128258193, now seen corresponding path program 1 times [2023-12-16 19:21:34,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:34,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036697399] [2023-12-16 19:21:34,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:34,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:34,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036697399] [2023-12-16 19:21:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036697399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:34,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:34,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:21:34,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247688405] [2023-12-16 19:21:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:34,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:21:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:34,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:21:34,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:21:34,718 INFO L87 Difference]: Start difference. First operand 141 states and 201 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 19:21:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:34,791 INFO L93 Difference]: Finished difference Result 371 states and 529 transitions. [2023-12-16 19:21:34,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:21:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2023-12-16 19:21:34,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:34,792 INFO L225 Difference]: With dead ends: 371 [2023-12-16 19:21:34,793 INFO L226 Difference]: Without dead ends: 259 [2023-12-16 19:21:34,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:21:34,794 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 212 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:34,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 367 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:21:34,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-16 19:21:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 147. [2023-12-16 19:21:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.417808219178082) internal successors, (207), 146 states have internal predecessors, (207), 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 19:21:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 207 transitions. [2023-12-16 19:21:34,798 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 207 transitions. Word has length 54 [2023-12-16 19:21:34,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:34,798 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 207 transitions. [2023-12-16 19:21:34,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 19:21:34,798 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 207 transitions. [2023-12-16 19:21:34,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 19:21:34,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:34,799 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1] [2023-12-16 19:21:34,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 19:21:34,799 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:34,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1284252691, now seen corresponding path program 1 times [2023-12-16 19:21:34,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:34,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583357200] [2023-12-16 19:21:34,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:34,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:35,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:35,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583357200] [2023-12-16 19:21:35,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583357200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:35,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:35,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 19:21:35,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318113154] [2023-12-16 19:21:35,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:35,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:21:35,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:21:35,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:35,410 INFO L87 Difference]: Start difference. First operand 147 states and 207 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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 19:21:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:35,712 INFO L93 Difference]: Finished difference Result 279 states and 399 transitions. [2023-12-16 19:21:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 19:21:35,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2023-12-16 19:21:35,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:35,713 INFO L225 Difference]: With dead ends: 279 [2023-12-16 19:21:35,713 INFO L226 Difference]: Without dead ends: 217 [2023-12-16 19:21:35,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-12-16 19:21:35,714 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 431 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:35,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 511 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:21:35,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-16 19:21:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 146. [2023-12-16 19:21:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4206896551724137) internal successors, (206), 145 states have internal predecessors, (206), 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 19:21:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 206 transitions. [2023-12-16 19:21:35,718 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 206 transitions. Word has length 54 [2023-12-16 19:21:35,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:35,718 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 206 transitions. [2023-12-16 19:21:35,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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 19:21:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 206 transitions. [2023-12-16 19:21:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 19:21:35,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:35,719 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1] [2023-12-16 19:21:35,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 19:21:35,719 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:35,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:35,719 INFO L85 PathProgramCache]: Analyzing trace with hash 495091499, now seen corresponding path program 1 times [2023-12-16 19:21:35,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:35,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914258768] [2023-12-16 19:21:35,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:35,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:35,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:35,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914258768] [2023-12-16 19:21:35,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914258768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:35,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:35,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:21:35,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138896878] [2023-12-16 19:21:35,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:35,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:21:35,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:35,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:21:35,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:21:35,999 INFO L87 Difference]: Start difference. First operand 146 states and 206 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 19:21:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:36,092 INFO L93 Difference]: Finished difference Result 206 states and 294 transitions. [2023-12-16 19:21:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:21:36,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2023-12-16 19:21:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:36,093 INFO L225 Difference]: With dead ends: 206 [2023-12-16 19:21:36,093 INFO L226 Difference]: Without dead ends: 146 [2023-12-16 19:21:36,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:36,094 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 126 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:36,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 367 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:21:36,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-12-16 19:21:36,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2023-12-16 19:21:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.4225352112676057) internal successors, (202), 142 states have internal predecessors, (202), 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 19:21:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 202 transitions. [2023-12-16 19:21:36,097 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 202 transitions. Word has length 54 [2023-12-16 19:21:36,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:36,098 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 202 transitions. [2023-12-16 19:21:36,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 19:21:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 202 transitions. [2023-12-16 19:21:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 19:21:36,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:36,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1] [2023-12-16 19:21:36,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 19:21:36,098 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:36,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:36,099 INFO L85 PathProgramCache]: Analyzing trace with hash -91714515, now seen corresponding path program 1 times [2023-12-16 19:21:36,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:36,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95590144] [2023-12-16 19:21:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:36,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:36,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:36,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95590144] [2023-12-16 19:21:36,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95590144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:36,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:36,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:21:36,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633856702] [2023-12-16 19:21:36,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:36,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:21:36,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:36,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:21:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:36,479 INFO L87 Difference]: Start difference. First operand 143 states and 202 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 19:21:36,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:36,656 INFO L93 Difference]: Finished difference Result 455 states and 655 transitions. [2023-12-16 19:21:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 19:21:36,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 54 [2023-12-16 19:21:36,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:36,657 INFO L225 Difference]: With dead ends: 455 [2023-12-16 19:21:36,657 INFO L226 Difference]: Without dead ends: 396 [2023-12-16 19:21:36,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-16 19:21:36,659 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 364 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:36,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 858 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:21:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-16 19:21:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 181. [2023-12-16 19:21:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.4222222222222223) internal successors, (256), 180 states have internal predecessors, (256), 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 19:21:36,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 256 transitions. [2023-12-16 19:21:36,665 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 256 transitions. Word has length 54 [2023-12-16 19:21:36,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:36,666 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 256 transitions. [2023-12-16 19:21:36,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 19:21:36,666 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 256 transitions. [2023-12-16 19:21:36,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 19:21:36,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:36,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1] [2023-12-16 19:21:36,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 19:21:36,668 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:36,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:36,669 INFO L85 PathProgramCache]: Analyzing trace with hash 492564655, now seen corresponding path program 1 times [2023-12-16 19:21:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:36,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963296226] [2023-12-16 19:21:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:36,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:36,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:36,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963296226] [2023-12-16 19:21:36,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963296226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:36,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:36,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:21:36,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263986548] [2023-12-16 19:21:36,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:36,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:21:36,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:36,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:21:36,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:21:36,935 INFO L87 Difference]: Start difference. First operand 181 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 19:21:36,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:36,988 INFO L93 Difference]: Finished difference Result 328 states and 463 transitions. [2023-12-16 19:21:36,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:21:36,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2023-12-16 19:21:36,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:36,990 INFO L225 Difference]: With dead ends: 328 [2023-12-16 19:21:36,990 INFO L226 Difference]: Without dead ends: 197 [2023-12-16 19:21:36,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:36,990 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 296 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:36,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 262 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:21:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-16 19:21:36,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 135. [2023-12-16 19:21:36,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.4179104477611941) internal successors, (190), 134 states have internal predecessors, (190), 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 19:21:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 190 transitions. [2023-12-16 19:21:36,996 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 190 transitions. Word has length 54 [2023-12-16 19:21:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:36,996 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 190 transitions. [2023-12-16 19:21:36,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 19:21:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 190 transitions. [2023-12-16 19:21:36,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 19:21:36,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:36,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:36,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 19:21:36,996 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:36,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2045819117, now seen corresponding path program 1 times [2023-12-16 19:21:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:36,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355815815] [2023-12-16 19:21:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:36,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:37,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:37,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355815815] [2023-12-16 19:21:37,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355815815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:37,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:37,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 19:21:37,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952457420] [2023-12-16 19:21:37,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:37,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 19:21:37,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:37,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 19:21:37,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 19:21:37,641 INFO L87 Difference]: Start difference. First operand 135 states and 190 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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 19:21:37,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:37,853 INFO L93 Difference]: Finished difference Result 271 states and 378 transitions. [2023-12-16 19:21:37,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 19:21:37,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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 55 [2023-12-16 19:21:37,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:37,855 INFO L225 Difference]: With dead ends: 271 [2023-12-16 19:21:37,855 INFO L226 Difference]: Without dead ends: 184 [2023-12-16 19:21:37,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-16 19:21:37,855 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 252 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:37,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 373 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:21:37,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-16 19:21:37,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 154. [2023-12-16 19:21:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.3856209150326797) internal successors, (212), 153 states have internal predecessors, (212), 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 19:21:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 212 transitions. [2023-12-16 19:21:37,861 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 212 transitions. Word has length 55 [2023-12-16 19:21:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:37,861 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 212 transitions. [2023-12-16 19:21:37,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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 19:21:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 212 transitions. [2023-12-16 19:21:37,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 19:21:37,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:37,861 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:37,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 19:21:37,862 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:37,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:37,862 INFO L85 PathProgramCache]: Analyzing trace with hash -458423687, now seen corresponding path program 1 times [2023-12-16 19:21:37,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:37,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25939463] [2023-12-16 19:21:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:37,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:38,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:38,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25939463] [2023-12-16 19:21:38,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25939463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:38,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:38,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:21:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033897811] [2023-12-16 19:21:38,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:38,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 19:21:38,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:38,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 19:21:38,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:21:38,404 INFO L87 Difference]: Start difference. First operand 154 states and 212 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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 19:21:38,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:38,614 INFO L93 Difference]: Finished difference Result 271 states and 377 transitions. [2023-12-16 19:21:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 19:21:38,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2023-12-16 19:21:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:38,615 INFO L225 Difference]: With dead ends: 271 [2023-12-16 19:21:38,615 INFO L226 Difference]: Without dead ends: 184 [2023-12-16 19:21:38,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 19:21:38,616 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 268 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:38,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 282 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:21:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-16 19:21:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 155. [2023-12-16 19:21:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.3831168831168832) internal successors, (213), 154 states have internal predecessors, (213), 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 19:21:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2023-12-16 19:21:38,621 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 55 [2023-12-16 19:21:38,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:38,621 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2023-12-16 19:21:38,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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 19:21:38,621 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2023-12-16 19:21:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 19:21:38,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:38,621 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:38,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 19:21:38,622 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:38,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:38,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2031105275, now seen corresponding path program 1 times [2023-12-16 19:21:38,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:38,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184297913] [2023-12-16 19:21:38,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:38,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:21:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:21:39,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:21:39,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184297913] [2023-12-16 19:21:39,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184297913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:21:39,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:21:39,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:21:39,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658182138] [2023-12-16 19:21:39,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:21:39,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:21:39,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:21:39,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:21:39,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:21:39,096 INFO L87 Difference]: Start difference. First operand 155 states and 213 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 19:21:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:21:39,299 INFO L93 Difference]: Finished difference Result 371 states and 524 transitions. [2023-12-16 19:21:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 19:21:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2023-12-16 19:21:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:21:39,300 INFO L225 Difference]: With dead ends: 371 [2023-12-16 19:21:39,300 INFO L226 Difference]: Without dead ends: 293 [2023-12-16 19:21:39,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 19:21:39,301 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 322 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:21:39,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 772 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:21:39,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-16 19:21:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 130. [2023-12-16 19:21:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.372093023255814) internal successors, (177), 129 states have internal predecessors, (177), 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 19:21:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2023-12-16 19:21:39,308 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 177 transitions. Word has length 55 [2023-12-16 19:21:39,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:21:39,308 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 177 transitions. [2023-12-16 19:21:39,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 19:21:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 177 transitions. [2023-12-16 19:21:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 19:21:39,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:21:39,308 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:39,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 19:21:39,308 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:21:39,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:21:39,309 INFO L85 PathProgramCache]: Analyzing trace with hash -866244129, now seen corresponding path program 1 times [2023-12-16 19:21:39,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:21:39,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586919639] [2023-12-16 19:21:39,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:21:39,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:21:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 19:21:39,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-16 19:21:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 19:21:39,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-16 19:21:39,506 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-16 19:21:39,507 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:21:39,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 19:21:39,511 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:21:39,514 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:21:39,581 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-16 19:21:39,581 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-16 19:21:39,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:21:39 BoogieIcfgContainer [2023-12-16 19:21:39,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:21:39,604 INFO L158 Benchmark]: Toolchain (without parser) took 12308.68ms. Allocated memory was 263.2MB in the beginning and 451.9MB in the end (delta: 188.7MB). Free memory was 211.0MB in the beginning and 332.9MB in the end (delta: -121.9MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-16 19:21:39,604 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 219.2MB. Free memory was 167.9MB in the beginning and 167.8MB in the end (delta: 163.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:21:39,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.41ms. Allocated memory is still 263.2MB. Free memory was 211.0MB in the beginning and 196.2MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 19:21:39,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.39ms. Allocated memory is still 263.2MB. Free memory was 196.2MB in the beginning and 189.0MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 19:21:39,605 INFO L158 Benchmark]: Boogie Preprocessor took 77.86ms. Allocated memory is still 263.2MB. Free memory was 189.0MB in the beginning and 184.1MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 19:21:39,605 INFO L158 Benchmark]: RCFGBuilder took 432.42ms. Allocated memory is still 263.2MB. Free memory was 184.1MB in the beginning and 225.6MB in the end (delta: -41.4MB). Peak memory consumption was 44.5MB. Max. memory is 8.0GB. [2023-12-16 19:21:39,607 INFO L158 Benchmark]: TraceAbstraction took 11446.36ms. Allocated memory was 263.2MB in the beginning and 451.9MB in the end (delta: 188.7MB). Free memory was 225.0MB in the beginning and 332.9MB in the end (delta: -107.9MB). Peak memory consumption was 81.4MB. Max. memory is 8.0GB. [2023-12-16 19:21:39,611 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 219.2MB. Free memory was 167.9MB in the beginning and 167.8MB in the end (delta: 163.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 275.41ms. Allocated memory is still 263.2MB. Free memory was 211.0MB in the beginning and 196.2MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.39ms. Allocated memory is still 263.2MB. Free memory was 196.2MB in the beginning and 189.0MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.86ms. Allocated memory is still 263.2MB. Free memory was 189.0MB in the beginning and 184.1MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 432.42ms. Allocated memory is still 263.2MB. Free memory was 184.1MB in the beginning and 225.6MB in the end (delta: -41.4MB). Peak memory consumption was 44.5MB. Max. memory is 8.0GB. * TraceAbstraction took 11446.36ms. Allocated memory was 263.2MB in the beginning and 451.9MB in the end (delta: 188.7MB). Free memory was 225.0MB in the beginning and 332.9MB in the end (delta: -107.9MB). Peak memory consumption was 81.4MB. 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 shiftRight at line 93, overapproximation of bitwiseOr at line 148, overapproximation of bitwiseAnd at line 161. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_28 mask_SORT_28 = (SORT_28)-1 >> (sizeof(SORT_28) * 8 - 32); [L33] const SORT_28 msb_SORT_28 = (SORT_28)1 << (32 - 1); [L35] const SORT_4 var_5 = 1; [L36] const SORT_4 var_8 = 0; [L37] const SORT_1 var_15 = 1; [L38] const SORT_4 var_22 = 15; [L39] const SORT_28 var_30 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L44] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, var_15=1, var_22=15, var_30=1, var_5=1, var_8=0] [L44] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=0, var_15=1, var_22=15, var_30=1, var_5=1, var_8=0] [L45] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L47] SORT_4 init_7_arg_1 = var_5; [L48] state_6 = init_7_arg_1 [L49] SORT_4 init_10_arg_1 = var_8; [L50] state_9 = init_10_arg_1 VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_15=1, var_22=15, var_30=1, var_5=1, var_8=0] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_5=1, var_8=0] [L66] EXPR var_17_arg_0 & var_17_arg_1 VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_5=1, var_8=0] [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] EXPR var_17 & mask_SORT_1 VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_5=1, var_8=0] [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L78] EXPR var_39_arg_0 & var_39_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] EXPR var_39 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29_arg_0=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L81] EXPR var_29_arg_0 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29_arg_0=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31_arg_0=15, var_31_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L85] EXPR var_31_arg_0 >> var_31_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31_arg_0=15, var_31_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33_arg_0=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L89] EXPR var_33_arg_0 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33_arg_0=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34_arg_0=1, var_34_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L93] EXPR var_34_arg_0 >> var_34_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34_arg_0=1, var_34_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24_arg_0=0, var_24_arg_1=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L110] EXPR var_24_arg_0 | var_24_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24_arg_0=0, var_24_arg_1=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] EXPR var_24 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=2, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_5=1, var_8=0] [L127] EXPR var_40 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=2, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_5=1, var_8=0] [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L136] EXPR var_50_arg_0 & var_50_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] EXPR var_50 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46_arg_0=254, var_46_arg_1=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L148] EXPR var_46_arg_0 | var_46_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46_arg_0=254, var_46_arg_1=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] EXPR var_46 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=255, var_46_arg_0=254, var_46_arg_1=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L161] EXPR var_51 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=1, var_11_arg_0=0, var_11_arg_1=1, var_12=254, var_12_arg_0=1, var_15=1, var_16=1, var_16_arg_0=254, var_17=0, var_17_arg_0=1, var_17_arg_1=1, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L66] EXPR var_17_arg_0 & var_17_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=1, var_11_arg_0=0, var_11_arg_1=1, var_12=254, var_12_arg_0=1, var_15=1, var_16=1, var_16_arg_0=254, var_17=0, var_17_arg_0=1, var_17_arg_1=1, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] EXPR var_17 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=1, var_11_arg_0=0, var_11_arg_1=1, var_12=254, var_12_arg_0=1, var_15=1, var_16=1, var_16_arg_0=254, var_17=1, var_17_arg_0=1, var_17_arg_1=1, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_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, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 20, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4434 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4434 mSDsluCounter, 7101 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5346 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2754 IncrementalHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 1755 mSDtfsCounter, 2754 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=15, InterpolantAutomatonStates: 159, 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, 19 MinimizatonAttempts, 969 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1044 NumberOfCodeBlocks, 1044 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 967 ConstructedInterpolants, 0 QuantifiedInterpolants, 5411 SizeOfPredicates, 22 NumberOfNonLiveVariables, 752 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 21 InterpolantComputations, 19 PerfectInterpolantSequences, 100/108 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 19:21:39,633 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...