/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.cal6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:13:18,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:13:18,224 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 19:13:18,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:13:18,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:13:18,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:13:18,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:13:18,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:13:18,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:13:18,332 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:13:18,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:13:18,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:13:18,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:13:18,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:13:18,338 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:13:18,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:13:18,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:13:18,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:13:18,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:13:18,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:13:18,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:13:18,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:13:18,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:13:18,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:13:18,340 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:13:18,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:13:18,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:13:18,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:13:18,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:13:18,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:13:18,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:13:18,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:13:18,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:13:18,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:13:18,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:13:18,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:13:18,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:13:18,538 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:13:18,538 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:13:18,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal6.c [2023-12-16 19:13:19,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:13:19,783 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:13:19,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal6.c [2023-12-16 19:13:19,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c78a40d8/dfdb38b53f3b48c0bcbcf8b7454e6988/FLAGd0faa6721 [2023-12-16 19:13:19,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c78a40d8/dfdb38b53f3b48c0bcbcf8b7454e6988 [2023-12-16 19:13:19,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:13:19,818 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:13:19,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:13:19,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:13:19,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:13:19,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:13:19" (1/1) ... [2023-12-16 19:13:19,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa51890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:19, skipping insertion in model container [2023-12-16 19:13:19,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:13:19" (1/1) ... [2023-12-16 19:13:19,877 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:13:19,996 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.cal6.c[1244,1257] [2023-12-16 19:13:20,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:13:20,254 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:13:20,262 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.cal6.c[1244,1257] [2023-12-16 19:13:20,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:13:20,453 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:13:20,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20 WrapperNode [2023-12-16 19:13:20,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:13:20,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:13:20,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:13:20,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:13:20,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:20,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:20,908 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4254 [2023-12-16 19:13:20,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:13:20,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:13:20,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:13:20,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:13:20,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:20,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,067 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2023-12-16 19:13:21,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:13:21,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:13:21,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:13:21,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:13:21,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (1/1) ... [2023-12-16 19:13:21,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:13:21,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:13:21,306 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 19:13:21,319 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 19:13:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:13:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:13:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 19:13:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:13:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:13:21,630 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:13:21,632 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:13:23,595 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:13:23,682 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:13:23,682 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:13:23,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:13:23 BoogieIcfgContainer [2023-12-16 19:13:23,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:13:23,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:13:23,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:13:23,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:13:23,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:13:19" (1/3) ... [2023-12-16 19:13:23,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6294dfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:13:23, skipping insertion in model container [2023-12-16 19:13:23,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:13:20" (2/3) ... [2023-12-16 19:13:23,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6294dfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:13:23, skipping insertion in model container [2023-12-16 19:13:23,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:13:23" (3/3) ... [2023-12-16 19:13:23,690 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal6.c [2023-12-16 19:13:23,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:13:23,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:13:23,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:13:23,763 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;@5832b9e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:13:23,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:13:23,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 833 states, 831 states have (on average 1.667870036101083) internal successors, (1386), 832 states have internal predecessors, (1386), 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 19:13:23,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-16 19:13:23,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:23,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:23,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:23,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:23,789 INFO L85 PathProgramCache]: Analyzing trace with hash 187594072, now seen corresponding path program 1 times [2023-12-16 19:13:23,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:23,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016058682] [2023-12-16 19:13:23,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:23,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:25,761 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 19:13:25,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:25,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016058682] [2023-12-16 19:13:25,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016058682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:25,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:25,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:25,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070706752] [2023-12-16 19:13:25,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:25,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:25,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:25,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:25,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:25,797 INFO L87 Difference]: Start difference. First operand has 833 states, 831 states have (on average 1.667870036101083) internal successors, (1386), 832 states have internal predecessors, (1386), 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 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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 19:13:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:25,872 INFO L93 Difference]: Finished difference Result 1644 states and 2738 transitions. [2023-12-16 19:13:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:25,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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 362 [2023-12-16 19:13:25,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:25,886 INFO L225 Difference]: With dead ends: 1644 [2023-12-16 19:13:25,886 INFO L226 Difference]: Without dead ends: 833 [2023-12-16 19:13:25,891 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 19:13:25,893 INFO L413 NwaCegarLoop]: 1379 mSDtfsCounter, 1 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4132 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 19:13:25,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4132 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:13:25,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-12-16 19:13:25,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2023-12-16 19:13:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 832 states have (on average 1.6634615384615385) internal successors, (1384), 832 states have internal predecessors, (1384), 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 19:13:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1384 transitions. [2023-12-16 19:13:25,991 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1384 transitions. Word has length 362 [2023-12-16 19:13:25,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:25,992 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1384 transitions. [2023-12-16 19:13:25,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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 19:13:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1384 transitions. [2023-12-16 19:13:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-12-16 19:13:25,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:25,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:25,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:13:25,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:25,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1522176047, now seen corresponding path program 1 times [2023-12-16 19:13:25,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:25,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372607471] [2023-12-16 19:13:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:25,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:26,799 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 19:13:26,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372607471] [2023-12-16 19:13:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372607471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:26,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:26,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:26,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118523004] [2023-12-16 19:13:26,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:26,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:26,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:26,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:26,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:26,854 INFO L87 Difference]: Start difference. First operand 833 states and 1384 transitions. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 19:13:26,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:26,891 INFO L93 Difference]: Finished difference Result 1647 states and 2736 transitions. [2023-12-16 19:13:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:26,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 363 [2023-12-16 19:13:26,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:26,895 INFO L225 Difference]: With dead ends: 1647 [2023-12-16 19:13:26,895 INFO L226 Difference]: Without dead ends: 836 [2023-12-16 19:13:26,896 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 19:13:26,897 INFO L413 NwaCegarLoop]: 1379 mSDtfsCounter, 1 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4130 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 19:13:26,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4130 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:13:26,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-12-16 19:13:26,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 835. [2023-12-16 19:13:26,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 834 states have (on average 1.6618705035971224) internal successors, (1386), 834 states have internal predecessors, (1386), 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 19:13:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1386 transitions. [2023-12-16 19:13:26,921 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1386 transitions. Word has length 363 [2023-12-16 19:13:26,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:26,922 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1386 transitions. [2023-12-16 19:13:26,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 19:13:26,922 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1386 transitions. [2023-12-16 19:13:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-12-16 19:13:26,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:26,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:26,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:13:26,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:26,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:26,933 INFO L85 PathProgramCache]: Analyzing trace with hash -267613102, now seen corresponding path program 1 times [2023-12-16 19:13:26,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:26,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628895650] [2023-12-16 19:13:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:30,433 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 19:13:30,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:30,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628895650] [2023-12-16 19:13:30,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628895650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:30,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:30,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:13:30,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841120979] [2023-12-16 19:13:30,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:30,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:13:30,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:30,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:13:30,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:30,441 INFO L87 Difference]: Start difference. First operand 835 states and 1386 transitions. Second operand has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 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 19:13:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:30,554 INFO L93 Difference]: Finished difference Result 2926 states and 4860 transitions. [2023-12-16 19:13:30,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:13:30,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 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 364 [2023-12-16 19:13:30,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:30,561 INFO L225 Difference]: With dead ends: 2926 [2023-12-16 19:13:30,561 INFO L226 Difference]: Without dead ends: 2113 [2023-12-16 19:13:30,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:13:30,565 INFO L413 NwaCegarLoop]: 2164 mSDtfsCounter, 4012 mSDsluCounter, 4304 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4012 SdHoareTripleChecker+Valid, 6468 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:30,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4012 Valid, 6468 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:13:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2023-12-16 19:13:30,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 838. [2023-12-16 19:13:30,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.6594982078853047) internal successors, (1389), 837 states have internal predecessors, (1389), 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 19:13:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1389 transitions. [2023-12-16 19:13:30,586 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1389 transitions. Word has length 364 [2023-12-16 19:13:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:30,587 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1389 transitions. [2023-12-16 19:13:30,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 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 19:13:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1389 transitions. [2023-12-16 19:13:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-12-16 19:13:30,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:30,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:30,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:13:30,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:30,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:30,598 INFO L85 PathProgramCache]: Analyzing trace with hash -117945565, now seen corresponding path program 1 times [2023-12-16 19:13:30,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:30,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66610381] [2023-12-16 19:13:30,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:30,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:33,552 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 19:13:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66610381] [2023-12-16 19:13:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66610381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:33,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 19:13:33,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869049635] [2023-12-16 19:13:33,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:33,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 19:13:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:33,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 19:13:33,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:13:33,554 INFO L87 Difference]: Start difference. First operand 838 states and 1389 transitions. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 6 states have internal predecessors, (365), 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 19:13:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:34,455 INFO L93 Difference]: Finished difference Result 2131 states and 3536 transitions. [2023-12-16 19:13:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 19:13:34,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 6 states have internal predecessors, (365), 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 365 [2023-12-16 19:13:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:34,460 INFO L225 Difference]: With dead ends: 2131 [2023-12-16 19:13:34,460 INFO L226 Difference]: Without dead ends: 1315 [2023-12-16 19:13:34,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 19:13:34,462 INFO L413 NwaCegarLoop]: 1794 mSDtfsCounter, 3183 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:34,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 6754 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 19:13:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2023-12-16 19:13:34,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 840. [2023-12-16 19:13:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 839 states have (on average 1.6579261025029797) internal successors, (1391), 839 states have internal predecessors, (1391), 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 19:13:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1391 transitions. [2023-12-16 19:13:34,477 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1391 transitions. Word has length 365 [2023-12-16 19:13:34,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:34,478 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1391 transitions. [2023-12-16 19:13:34,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 6 states have internal predecessors, (365), 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 19:13:34,478 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1391 transitions. [2023-12-16 19:13:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2023-12-16 19:13:34,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:34,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:34,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:13:34,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:34,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:34,482 INFO L85 PathProgramCache]: Analyzing trace with hash -351521716, now seen corresponding path program 1 times [2023-12-16 19:13:34,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:34,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367333823] [2023-12-16 19:13:34,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:34,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:36,576 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 19:13:36,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:36,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367333823] [2023-12-16 19:13:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367333823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:36,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 19:13:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806868705] [2023-12-16 19:13:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:36,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 19:13:36,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 19:13:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 19:13:36,581 INFO L87 Difference]: Start difference. First operand 840 states and 1391 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 19:13:36,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:36,616 INFO L93 Difference]: Finished difference Result 2162 states and 3583 transitions. [2023-12-16 19:13:36,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 19:13:36,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 366 [2023-12-16 19:13:36,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:36,621 INFO L225 Difference]: With dead ends: 2162 [2023-12-16 19:13:36,622 INFO L226 Difference]: Without dead ends: 1344 [2023-12-16 19:13:36,623 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 19:13:36,623 INFO L413 NwaCegarLoop]: 2209 mSDtfsCounter, 1344 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 3075 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 19:13:36,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 3075 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:13:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2023-12-16 19:13:36,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 840. [2023-12-16 19:13:36,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 839 states have (on average 1.6567342073897497) internal successors, (1390), 839 states have internal predecessors, (1390), 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 19:13:36,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1390 transitions. [2023-12-16 19:13:36,641 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1390 transitions. Word has length 366 [2023-12-16 19:13:36,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:36,642 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1390 transitions. [2023-12-16 19:13:36,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 19:13:36,642 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1390 transitions. [2023-12-16 19:13:36,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 19:13:36,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:36,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:36,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 19:13:36,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:36,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:36,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1044846317, now seen corresponding path program 1 times [2023-12-16 19:13:36,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:36,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550238403] [2023-12-16 19:13:36,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:36,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:39,136 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 19:13:39,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:39,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550238403] [2023-12-16 19:13:39,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550238403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:39,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:39,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 19:13:39,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55223184] [2023-12-16 19:13:39,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:39,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:13:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:39,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:13:39,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:13:39,138 INFO L87 Difference]: Start difference. First operand 840 states and 1390 transitions. Second operand has 8 states, 8 states have (on average 45.875) internal successors, (367), 7 states have internal predecessors, (367), 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 19:13:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:40,190 INFO L93 Difference]: Finished difference Result 2482 states and 4106 transitions. [2023-12-16 19:13:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:13:40,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.875) internal successors, (367), 7 states have internal predecessors, (367), 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 367 [2023-12-16 19:13:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:40,196 INFO L225 Difference]: With dead ends: 2482 [2023-12-16 19:13:40,196 INFO L226 Difference]: Without dead ends: 1664 [2023-12-16 19:13:40,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-16 19:13:40,198 INFO L413 NwaCegarLoop]: 1830 mSDtfsCounter, 3232 mSDsluCounter, 6611 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3232 SdHoareTripleChecker+Valid, 8441 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:40,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3232 Valid, 8441 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 19:13:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-12-16 19:13:40,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 845. [2023-12-16 19:13:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.6540284360189574) internal successors, (1396), 844 states have internal predecessors, (1396), 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 19:13:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1396 transitions. [2023-12-16 19:13:40,215 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1396 transitions. Word has length 367 [2023-12-16 19:13:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:40,215 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1396 transitions. [2023-12-16 19:13:40,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.875) internal successors, (367), 7 states have internal predecessors, (367), 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 19:13:40,216 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1396 transitions. [2023-12-16 19:13:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 19:13:40,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:40,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:40,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 19:13:40,218 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:40,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:40,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1255976273, now seen corresponding path program 1 times [2023-12-16 19:13:40,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:40,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539255969] [2023-12-16 19:13:40,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:40,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:42,973 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 19:13:42,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:42,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539255969] [2023-12-16 19:13:42,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539255969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:42,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:42,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 19:13:42,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972430805] [2023-12-16 19:13:42,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:42,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:13:42,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:42,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:13:42,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:13:42,976 INFO L87 Difference]: Start difference. First operand 845 states and 1396 transitions. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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 19:13:43,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:43,304 INFO L93 Difference]: Finished difference Result 2549 states and 4205 transitions. [2023-12-16 19:13:43,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:13:43,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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 367 [2023-12-16 19:13:43,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:43,308 INFO L225 Difference]: With dead ends: 2549 [2023-12-16 19:13:43,308 INFO L226 Difference]: Without dead ends: 939 [2023-12-16 19:13:43,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:13:43,324 INFO L413 NwaCegarLoop]: 1886 mSDtfsCounter, 5352 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5352 SdHoareTripleChecker+Valid, 5324 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:43,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5352 Valid, 5324 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 19:13:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2023-12-16 19:13:43,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 845. [2023-12-16 19:13:43,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.6528436018957346) internal successors, (1395), 844 states have internal predecessors, (1395), 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 19:13:43,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1395 transitions. [2023-12-16 19:13:43,337 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1395 transitions. Word has length 367 [2023-12-16 19:13:43,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:43,337 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1395 transitions. [2023-12-16 19:13:43,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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 19:13:43,337 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1395 transitions. [2023-12-16 19:13:43,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-16 19:13:43,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:43,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:43,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 19:13:43,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:43,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:43,340 INFO L85 PathProgramCache]: Analyzing trace with hash 277284772, now seen corresponding path program 1 times [2023-12-16 19:13:43,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:43,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356741289] [2023-12-16 19:13:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:43,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:45,614 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 19:13:45,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:45,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356741289] [2023-12-16 19:13:45,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356741289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:45,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:45,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 19:13:45,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436334157] [2023-12-16 19:13:45,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:45,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 19:13:45,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:45,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 19:13:45,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:13:45,616 INFO L87 Difference]: Start difference. First operand 845 states and 1395 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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 19:13:46,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:46,215 INFO L93 Difference]: Finished difference Result 2525 states and 4167 transitions. [2023-12-16 19:13:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:13:46,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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 368 [2023-12-16 19:13:46,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:46,221 INFO L225 Difference]: With dead ends: 2525 [2023-12-16 19:13:46,221 INFO L226 Difference]: Without dead ends: 1702 [2023-12-16 19:13:46,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:13:46,223 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 4285 mSDsluCounter, 5741 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4285 SdHoareTripleChecker+Valid, 7726 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:46,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4285 Valid, 7726 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 19:13:46,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2023-12-16 19:13:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 866. [2023-12-16 19:13:46,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 865 states have (on average 1.6473988439306357) internal successors, (1425), 865 states have internal predecessors, (1425), 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 19:13:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1425 transitions. [2023-12-16 19:13:46,237 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1425 transitions. Word has length 368 [2023-12-16 19:13:46,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:46,238 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1425 transitions. [2023-12-16 19:13:46,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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 19:13:46,238 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1425 transitions. [2023-12-16 19:13:46,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-16 19:13:46,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:46,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:46,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 19:13:46,240 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:46,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash 576794003, now seen corresponding path program 1 times [2023-12-16 19:13:46,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:46,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360056132] [2023-12-16 19:13:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:46,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:49,111 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 19:13:49,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:49,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360056132] [2023-12-16 19:13:49,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360056132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:49,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:49,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:13:49,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986544848] [2023-12-16 19:13:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:49,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:13:49,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:13:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:49,114 INFO L87 Difference]: Start difference. First operand 866 states and 1425 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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 19:13:49,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:49,173 INFO L93 Difference]: Finished difference Result 2125 states and 3505 transitions. [2023-12-16 19:13:49,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:13:49,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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 369 [2023-12-16 19:13:49,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:49,177 INFO L225 Difference]: With dead ends: 2125 [2023-12-16 19:13:49,177 INFO L226 Difference]: Without dead ends: 1281 [2023-12-16 19:13:49,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:13:49,180 INFO L413 NwaCegarLoop]: 2052 mSDtfsCounter, 2492 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:49,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 3091 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:13:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2023-12-16 19:13:49,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 866. [2023-12-16 19:13:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 865 states have (on average 1.646242774566474) internal successors, (1424), 865 states have internal predecessors, (1424), 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 19:13:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1424 transitions. [2023-12-16 19:13:49,195 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1424 transitions. Word has length 369 [2023-12-16 19:13:49,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:49,195 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1424 transitions. [2023-12-16 19:13:49,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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 19:13:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1424 transitions. [2023-12-16 19:13:49,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-16 19:13:49,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:49,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:49,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 19:13:49,198 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:49,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2044788676, now seen corresponding path program 1 times [2023-12-16 19:13:49,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:49,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195748342] [2023-12-16 19:13:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:50,576 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 19:13:50,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:50,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195748342] [2023-12-16 19:13:50,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195748342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:50,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:50,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:50,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914582634] [2023-12-16 19:13:50,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:50,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:13:50,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:50,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:13:50,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:50,578 INFO L87 Difference]: Start difference. First operand 866 states and 1424 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 4 states have internal predecessors, (370), 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 19:13:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:51,078 INFO L93 Difference]: Finished difference Result 1714 states and 2817 transitions. [2023-12-16 19:13:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:13:51,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 4 states have internal predecessors, (370), 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 370 [2023-12-16 19:13:51,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:51,082 INFO L225 Difference]: With dead ends: 1714 [2023-12-16 19:13:51,082 INFO L226 Difference]: Without dead ends: 870 [2023-12-16 19:13:51,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:13:51,084 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 1053 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:51,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 3389 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 19:13:51,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-12-16 19:13:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 869. [2023-12-16 19:13:51,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.6440092165898617) internal successors, (1427), 868 states have internal predecessors, (1427), 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 19:13:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1427 transitions. [2023-12-16 19:13:51,097 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1427 transitions. Word has length 370 [2023-12-16 19:13:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:51,098 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1427 transitions. [2023-12-16 19:13:51,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 4 states have internal predecessors, (370), 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 19:13:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1427 transitions. [2023-12-16 19:13:51,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-16 19:13:51,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:51,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:51,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 19:13:51,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:51,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:51,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1855811834, now seen corresponding path program 1 times [2023-12-16 19:13:51,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:51,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014222659] [2023-12-16 19:13:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:51,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:54,007 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 19:13:54,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:54,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014222659] [2023-12-16 19:13:54,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014222659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:54,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:54,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 19:13:54,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242263725] [2023-12-16 19:13:54,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:54,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 19:13:54,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:54,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 19:13:54,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:13:54,009 INFO L87 Difference]: Start difference. First operand 869 states and 1427 transitions. Second operand has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 7 states have internal predecessors, (370), 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 19:13:54,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:54,491 INFO L93 Difference]: Finished difference Result 2187 states and 3597 transitions. [2023-12-16 19:13:54,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:13:54,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 7 states have internal predecessors, (370), 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 370 [2023-12-16 19:13:54,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:54,496 INFO L225 Difference]: With dead ends: 2187 [2023-12-16 19:13:54,496 INFO L226 Difference]: Without dead ends: 1288 [2023-12-16 19:13:54,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-16 19:13:54,498 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 2654 mSDsluCounter, 6662 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 8708 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:54,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 8708 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 19:13:54,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2023-12-16 19:13:54,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 871. [2023-12-16 19:13:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 870 states have (on average 1.6425287356321838) internal successors, (1429), 870 states have internal predecessors, (1429), 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 19:13:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1429 transitions. [2023-12-16 19:13:54,516 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1429 transitions. Word has length 370 [2023-12-16 19:13:54,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:54,516 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1429 transitions. [2023-12-16 19:13:54,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 7 states have internal predecessors, (370), 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 19:13:54,517 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1429 transitions. [2023-12-16 19:13:54,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-16 19:13:54,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:54,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:54,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 19:13:54,519 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:54,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:54,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1600121800, now seen corresponding path program 1 times [2023-12-16 19:13:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:54,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621508489] [2023-12-16 19:13:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:54,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:56,189 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 19:13:56,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:56,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621508489] [2023-12-16 19:13:56,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621508489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:56,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:56,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 19:13:56,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541495420] [2023-12-16 19:13:56,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:56,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 19:13:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:56,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 19:13:56,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:13:56,191 INFO L87 Difference]: Start difference. First operand 871 states and 1429 transitions. Second operand has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 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 19:13:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:56,319 INFO L93 Difference]: Finished difference Result 3361 states and 5534 transitions. [2023-12-16 19:13:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 19:13:56,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 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 370 [2023-12-16 19:13:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:56,327 INFO L225 Difference]: With dead ends: 3361 [2023-12-16 19:13:56,328 INFO L226 Difference]: Without dead ends: 2512 [2023-12-16 19:13:56,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-16 19:13:56,330 INFO L413 NwaCegarLoop]: 2055 mSDtfsCounter, 5881 mSDsluCounter, 7361 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5881 SdHoareTripleChecker+Valid, 9416 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:56,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5881 Valid, 9416 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:13:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2023-12-16 19:13:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 1270. [2023-12-16 19:13:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 1.648542159180457) internal successors, (2092), 1269 states have internal predecessors, (2092), 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 19:13:56,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 2092 transitions. [2023-12-16 19:13:56,360 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 2092 transitions. Word has length 370 [2023-12-16 19:13:56,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:56,360 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 2092 transitions. [2023-12-16 19:13:56,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 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 19:13:56,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 2092 transitions. [2023-12-16 19:13:56,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-16 19:13:56,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:56,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:56,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 19:13:56,363 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:56,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:56,363 INFO L85 PathProgramCache]: Analyzing trace with hash 650760395, now seen corresponding path program 1 times [2023-12-16 19:13:56,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:56,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124147121] [2023-12-16 19:13:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:56,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:57,851 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 19:13:57,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:57,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124147121] [2023-12-16 19:13:57,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124147121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:57,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:57,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:57,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514711598] [2023-12-16 19:13:57,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:57,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:13:57,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:57,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:13:57,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:57,856 INFO L87 Difference]: Start difference. First operand 1270 states and 2092 transitions. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 4 states have internal predecessors, (371), 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 19:13:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:58,480 INFO L93 Difference]: Finished difference Result 2520 states and 4151 transitions. [2023-12-16 19:13:58,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:13:58,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 4 states have internal predecessors, (371), 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 371 [2023-12-16 19:13:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:58,484 INFO L225 Difference]: With dead ends: 2520 [2023-12-16 19:13:58,484 INFO L226 Difference]: Without dead ends: 1272 [2023-12-16 19:13:58,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:13:58,486 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 1092 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:58,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 3391 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 19:13:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-12-16 19:13:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1271. [2023-12-16 19:13:58,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 1.648031496062992) internal successors, (2093), 1270 states have internal predecessors, (2093), 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 19:13:58,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2093 transitions. [2023-12-16 19:13:58,505 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2093 transitions. Word has length 371 [2023-12-16 19:13:58,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:58,506 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 2093 transitions. [2023-12-16 19:13:58,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 4 states have internal predecessors, (371), 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 19:13:58,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2093 transitions. [2023-12-16 19:13:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-16 19:13:58,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:58,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:58,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 19:13:58,508 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:58,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1426576503, now seen corresponding path program 1 times [2023-12-16 19:13:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:58,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843878180] [2023-12-16 19:13:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:58,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:14:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:14:01,038 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 19:14:01,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:14:01,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843878180] [2023-12-16 19:14:01,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843878180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:14:01,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:14:01,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:14:01,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839566508] [2023-12-16 19:14:01,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:14:01,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:14:01,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:14:01,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:14:01,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:14:01,041 INFO L87 Difference]: Start difference. First operand 1271 states and 2093 transitions. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 19:14:01,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:14:01,080 INFO L93 Difference]: Finished difference Result 3427 states and 5649 transitions. [2023-12-16 19:14:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:14:01,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 371 [2023-12-16 19:14:01,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:14:01,086 INFO L225 Difference]: With dead ends: 3427 [2023-12-16 19:14:01,086 INFO L226 Difference]: Without dead ends: 2178 [2023-12-16 19:14:01,088 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 19:14:01,088 INFO L413 NwaCegarLoop]: 2186 mSDtfsCounter, 2663 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:14:01,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2663 Valid, 3839 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:14:01,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2023-12-16 19:14:01,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 1271. [2023-12-16 19:14:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 1.646456692913386) internal successors, (2091), 1270 states have internal predecessors, (2091), 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 19:14:01,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2091 transitions. [2023-12-16 19:14:01,110 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2091 transitions. Word has length 371 [2023-12-16 19:14:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:14:01,110 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 2091 transitions. [2023-12-16 19:14:01,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 19:14:01,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2091 transitions. [2023-12-16 19:14:01,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2023-12-16 19:14:01,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:14:01,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:01,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 19:14:01,113 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:14:01,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:14:01,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1141391452, now seen corresponding path program 1 times [2023-12-16 19:14:01,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:14:01,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968522039] [2023-12-16 19:14:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:14:01,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:14:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:14:03,809 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 19:14:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:14:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968522039] [2023-12-16 19:14:03,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968522039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:14:03,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:14:03,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 19:14:03,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553510804] [2023-12-16 19:14:03,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:14:03,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 19:14:03,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:14:03,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 19:14:03,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:14:03,811 INFO L87 Difference]: Start difference. First operand 1271 states and 2091 transitions. Second operand has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 6 states have internal predecessors, (372), 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 19:14:04,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:14:04,271 INFO L93 Difference]: Finished difference Result 3435 states and 5657 transitions. [2023-12-16 19:14:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 19:14:04,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 6 states have internal predecessors, (372), 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 372 [2023-12-16 19:14:04,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:14:04,277 INFO L225 Difference]: With dead ends: 3435 [2023-12-16 19:14:04,277 INFO L226 Difference]: Without dead ends: 2186 [2023-12-16 19:14:04,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 19:14:04,279 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 3707 mSDsluCounter, 5456 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3707 SdHoareTripleChecker+Valid, 7431 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 19:14:04,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3707 Valid, 7431 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 19:14:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2023-12-16 19:14:04,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 1275. [2023-12-16 19:14:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1274 states have (on average 1.6444270015698588) internal successors, (2095), 1274 states have internal predecessors, (2095), 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 19:14:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 2095 transitions. [2023-12-16 19:14:04,299 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 2095 transitions. Word has length 372 [2023-12-16 19:14:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:14:04,299 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 2095 transitions. [2023-12-16 19:14:04,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 6 states have internal predecessors, (372), 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 19:14:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 2095 transitions. [2023-12-16 19:14:04,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2023-12-16 19:14:04,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:14:04,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:04,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 19:14:04,302 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:14:04,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:14:04,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1203431066, now seen corresponding path program 1 times [2023-12-16 19:14:04,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:14:04,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104077684] [2023-12-16 19:14:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:14:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:14:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:14:05,231 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 19:14:05,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:14:05,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104077684] [2023-12-16 19:14:05,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104077684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:14:05,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:14:05,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:14:05,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288540043] [2023-12-16 19:14:05,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:14:05,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:14:05,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:14:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:14:05,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:14:05,233 INFO L87 Difference]: Start difference. First operand 1275 states and 2095 transitions. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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 19:14:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:14:05,277 INFO L93 Difference]: Finished difference Result 3781 states and 6211 transitions. [2023-12-16 19:14:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:14:05,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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 372 [2023-12-16 19:14:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:14:05,284 INFO L225 Difference]: With dead ends: 3781 [2023-12-16 19:14:05,284 INFO L226 Difference]: Without dead ends: 2528 [2023-12-16 19:14:05,286 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 19:14:05,286 INFO L413 NwaCegarLoop]: 2188 mSDtfsCounter, 1338 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 5743 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:14:05,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 5743 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:14:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2023-12-16 19:14:05,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1281. [2023-12-16 19:14:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.64140625) internal successors, (2101), 1280 states have internal predecessors, (2101), 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 19:14:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2101 transitions. [2023-12-16 19:14:05,307 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2101 transitions. Word has length 372 [2023-12-16 19:14:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:14:05,307 INFO L495 AbstractCegarLoop]: Abstraction has 1281 states and 2101 transitions. [2023-12-16 19:14:05,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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 19:14:05,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2101 transitions. [2023-12-16 19:14:05,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-16 19:14:05,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:14:05,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:05,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 19:14:05,310 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:14:05,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:14:05,310 INFO L85 PathProgramCache]: Analyzing trace with hash -491307965, now seen corresponding path program 1 times [2023-12-16 19:14:05,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:14:05,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103521671] [2023-12-16 19:14:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:14:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:14:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:14:06,805 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 19:14:06,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:14:06,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103521671] [2023-12-16 19:14:06,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103521671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:14:06,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:14:06,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:14:06,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218189900] [2023-12-16 19:14:06,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:14:06,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:14:06,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:14:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:14:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:14:06,809 INFO L87 Difference]: Start difference. First operand 1281 states and 2101 transitions. Second operand has 5 states, 5 states have (on average 74.6) internal successors, (373), 4 states have internal predecessors, (373), 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 19:14:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:14:07,066 INFO L93 Difference]: Finished difference Result 2544 states and 4172 transitions. [2023-12-16 19:14:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:14:07,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 4 states have internal predecessors, (373), 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 373 [2023-12-16 19:14:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:14:07,070 INFO L225 Difference]: With dead ends: 2544 [2023-12-16 19:14:07,070 INFO L226 Difference]: Without dead ends: 1285 [2023-12-16 19:14:07,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:14:07,072 INFO L413 NwaCegarLoop]: 1242 mSDtfsCounter, 1037 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:14:07,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 3724 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:14:07,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2023-12-16 19:14:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1283. [2023-12-16 19:14:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1282 states have (on average 1.640405616224649) internal successors, (2103), 1282 states have internal predecessors, (2103), 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 19:14:07,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 2103 transitions. [2023-12-16 19:14:07,091 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 2103 transitions. Word has length 373 [2023-12-16 19:14:07,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:14:07,091 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 2103 transitions. [2023-12-16 19:14:07,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 4 states have internal predecessors, (373), 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 19:14:07,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 2103 transitions. [2023-12-16 19:14:07,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-16 19:14:07,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:14:07,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:07,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 19:14:07,094 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:14:07,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:14:07,094 INFO L85 PathProgramCache]: Analyzing trace with hash -625321471, now seen corresponding path program 1 times [2023-12-16 19:14:07,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:14:07,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065271123] [2023-12-16 19:14:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:14:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:14:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:14:09,350 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 19:14:09,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:14:09,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065271123] [2023-12-16 19:14:09,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065271123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:14:09,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:14:09,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:14:09,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150541505] [2023-12-16 19:14:09,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:14:09,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:14:09,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:14:09,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:14:09,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:14:09,352 INFO L87 Difference]: Start difference. First operand 1283 states and 2103 transitions. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 19:14:09,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:14:09,392 INFO L93 Difference]: Finished difference Result 3439 states and 5650 transitions. [2023-12-16 19:14:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:14:09,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 373 [2023-12-16 19:14:09,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:14:09,403 INFO L225 Difference]: With dead ends: 3439 [2023-12-16 19:14:09,403 INFO L226 Difference]: Without dead ends: 2178 [2023-12-16 19:14:09,405 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 19:14:09,406 INFO L413 NwaCegarLoop]: 2176 mSDtfsCounter, 2665 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:14:09,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 3819 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:14:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2023-12-16 19:14:09,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 1283. [2023-12-16 19:14:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1282 states have (on average 1.638845553822153) internal successors, (2101), 1282 states have internal predecessors, (2101), 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 19:14:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 2101 transitions. [2023-12-16 19:14:09,425 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 2101 transitions. Word has length 373 [2023-12-16 19:14:09,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:14:09,426 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 2101 transitions. [2023-12-16 19:14:09,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 19:14:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 2101 transitions. [2023-12-16 19:14:09,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-16 19:14:09,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:14:09,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:09,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 19:14:09,428 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:14:09,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:14:09,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2087321120, now seen corresponding path program 1 times [2023-12-16 19:14:09,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:14:09,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411265779] [2023-12-16 19:14:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:14:09,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:14:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:14:11,852 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 19:14:11,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:14:11,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411265779] [2023-12-16 19:14:11,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411265779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:14:11,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:14:11,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:14:11,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077134109] [2023-12-16 19:14:11,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:14:11,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:14:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:14:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:14:11,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:14:11,854 INFO L87 Difference]: Start difference. First operand 1283 states and 2101 transitions. Second operand has 8 states, 8 states have (on average 46.75) internal successors, (374), 8 states have internal predecessors, (374), 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 19:14:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:14:12,759 INFO L93 Difference]: Finished difference Result 3440 states and 5649 transitions. [2023-12-16 19:14:12,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 19:14:12,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.75) internal successors, (374), 8 states have internal predecessors, (374), 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 374 [2023-12-16 19:14:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:14:12,763 INFO L225 Difference]: With dead ends: 3440 [2023-12-16 19:14:12,763 INFO L226 Difference]: Without dead ends: 2179 [2023-12-16 19:14:12,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:14:12,765 INFO L413 NwaCegarLoop]: 1804 mSDtfsCounter, 3452 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3452 SdHoareTripleChecker+Valid, 7502 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 19:14:12,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3452 Valid, 7502 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 19:14:12,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2023-12-16 19:14:12,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1282. [2023-12-16 19:14:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 1.6385636221701796) internal successors, (2099), 1281 states have internal predecessors, (2099), 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 19:14:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 2099 transitions. [2023-12-16 19:14:12,785 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 2099 transitions. Word has length 374 [2023-12-16 19:14:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:14:12,785 INFO L495 AbstractCegarLoop]: Abstraction has 1282 states and 2099 transitions. [2023-12-16 19:14:12,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.75) internal successors, (374), 8 states have internal predecessors, (374), 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 19:14:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 2099 transitions. [2023-12-16 19:14:12,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-16 19:14:12,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:14:12,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:12,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 19:14:12,788 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:14:12,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:14:12,788 INFO L85 PathProgramCache]: Analyzing trace with hash 49832096, now seen corresponding path program 1 times [2023-12-16 19:14:12,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:14:12,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098931443] [2023-12-16 19:14:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:14:12,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-16 19:14:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-16 19:14:13,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:14:13,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 19:14:13,754 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 375 with TraceHistMax 1,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [2098931443] and IpTcStrategyModuleZ3 [774486713]. [2023-12-16 19:14:13,757 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 19:14:13,759 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:14:13,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:14:13 BoogieIcfgContainer [2023-12-16 19:14:13,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:14:13,760 INFO L158 Benchmark]: Toolchain (without parser) took 53942.60ms. Allocated memory was 241.2MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 185.9MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 678.9MB. Max. memory is 8.0GB. [2023-12-16 19:14:13,761 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:14:13,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.38ms. Allocated memory is still 241.2MB. Free memory was 185.4MB in the beginning and 176.4MB in the end (delta: 9.1MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. [2023-12-16 19:14:13,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 454.10ms. Allocated memory is still 241.2MB. Free memory was 176.4MB in the beginning and 138.7MB in the end (delta: 37.6MB). Peak memory consumption was 126.8MB. Max. memory is 8.0GB. [2023-12-16 19:14:13,761 INFO L158 Benchmark]: Boogie Preprocessor took 356.99ms. Allocated memory is still 241.2MB. Free memory was 138.7MB in the beginning and 82.6MB in the end (delta: 56.1MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2023-12-16 19:14:13,761 INFO L158 Benchmark]: RCFGBuilder took 2415.75ms. Allocated memory was 241.2MB in the beginning and 489.7MB in the end (delta: 248.5MB). Free memory was 82.6MB in the beginning and 226.6MB in the end (delta: -143.9MB). Peak memory consumption was 124.3MB. Max. memory is 8.0GB. [2023-12-16 19:14:13,761 INFO L158 Benchmark]: TraceAbstraction took 50074.58ms. Allocated memory was 489.7MB in the beginning and 2.0GB in the end (delta: 1.5GB). Free memory was 226.0MB in the beginning and 1.3GB in the end (delta: -1.0GB). Peak memory consumption was 470.0MB. Max. memory is 8.0GB. [2023-12-16 19:14:13,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-16 19:14:13,763 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 635.38ms. Allocated memory is still 241.2MB. Free memory was 185.4MB in the beginning and 176.4MB in the end (delta: 9.1MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 454.10ms. Allocated memory is still 241.2MB. Free memory was 176.4MB in the beginning and 138.7MB in the end (delta: 37.6MB). Peak memory consumption was 126.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 356.99ms. Allocated memory is still 241.2MB. Free memory was 138.7MB in the beginning and 82.6MB in the end (delta: 56.1MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. * RCFGBuilder took 2415.75ms. Allocated memory was 241.2MB in the beginning and 489.7MB in the end (delta: 248.5MB). Free memory was 82.6MB in the beginning and 226.6MB in the end (delta: -143.9MB). Peak memory consumption was 124.3MB. Max. memory is 8.0GB. * TraceAbstraction took 50074.58ms. Allocated memory was 489.7MB in the beginning and 2.0GB in the end (delta: 1.5GB). Free memory was 226.0MB in the beginning and 1.3GB in the end (delta: -1.0GB). Peak memory consumption was 470.0MB. 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 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 375 with TraceHistMax 1,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [2098931443] and IpTcStrategyModuleZ3 [774486713]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 833 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.0s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49444 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49444 mSDsluCounter, 106103 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71491 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9181 IncrementalHoareTripleChecker+Invalid, 9228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 34612 mSDtfsCounter, 9181 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1283occurred in iteration=17, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 10939 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 23.1s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 7007 NumberOfCodeBlocks, 7007 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 6988 ConstructedInterpolants, 0 QuantifiedInterpolants, 24555 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown