/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-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:18:56,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:18:56,997 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:18:57,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:18:57,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:18:57,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:18:57,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:18:57,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:18:57,025 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:18:57,028 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:18:57,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:18:57,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:18:57,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:18:57,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:18:57,030 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:18:57,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:18:57,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:18:57,031 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:18:57,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:18:57,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:18:57,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:18:57,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:18:57,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:18:57,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:18:57,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:18:57,032 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:18:57,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:18:57,033 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:18:57,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:18:57,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:18:57,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:18:57,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:18:57,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:18:57,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:18:57,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:18:57,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:18:57,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:18:57,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:18:57,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:18:57,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:18:57,035 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:18:57,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:18:57,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:18:57,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:18:57,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:18:57,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:18:57,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:18:57,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:18:57,252 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:18:57,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label27.c [2023-12-16 02:18:58,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:18:58,675 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:18:58,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label27.c [2023-12-16 02:18:58,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63a289e1b/e4914cf8d87649e191502f6374bcff36/FLAGb7fb24bbd [2023-12-16 02:18:58,714 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63a289e1b/e4914cf8d87649e191502f6374bcff36 [2023-12-16 02:18:58,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:18:58,717 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:18:58,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:18:58,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:18:58,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:18:58,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:18:58" (1/1) ... [2023-12-16 02:18:58,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7082dada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:58, skipping insertion in model container [2023-12-16 02:18:58,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:18:58" (1/1) ... [2023-12-16 02:18:58,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:18:58,998 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label27.c[3401,3414] [2023-12-16 02:18:59,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:18:59,473 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:18:59,491 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label27.c[3401,3414] [2023-12-16 02:18:59,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:18:59,693 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:18:59,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59 WrapperNode [2023-12-16 02:18:59,693 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:18:59,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:18:59,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:18:59,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:18:59,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:18:59,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:18:59,903 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2023-12-16 02:18:59,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:18:59,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:18:59,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:18:59,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:18:59,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:18:59,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,058 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 02:19:00,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:19:00,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:19:00,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:19:00,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:19:00,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (1/1) ... [2023-12-16 02:19:00,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:19:00,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:19:00,270 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 02:19:00,297 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 02:19:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:19:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:19:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:19:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:19:00,359 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:19:00,360 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:19:02,753 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:19:02,794 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:19:02,794 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:19:02,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:19:02 BoogieIcfgContainer [2023-12-16 02:19:02,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:19:02,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:19:02,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:19:02,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:19:02,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:18:58" (1/3) ... [2023-12-16 02:19:02,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f389788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:19:02, skipping insertion in model container [2023-12-16 02:19:02,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:18:59" (2/3) ... [2023-12-16 02:19:02,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f389788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:19:02, skipping insertion in model container [2023-12-16 02:19:02,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:19:02" (3/3) ... [2023-12-16 02:19:02,800 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label27.c [2023-12-16 02:19:02,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:19:02,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:19:02,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:19:02,876 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;@5bc7ac19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:19:02,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:19:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 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 02:19:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-16 02:19:02,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:02,890 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] [2023-12-16 02:19:02,891 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:02,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash -144238570, now seen corresponding path program 1 times [2023-12-16 02:19:02,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:02,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782130326] [2023-12-16 02:19:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:02,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:03,049 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 02:19:03,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:03,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782130326] [2023-12-16 02:19:03,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782130326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:03,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:03,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:19:03,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065269827] [2023-12-16 02:19:03,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:03,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:19:03,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:03,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:19:03,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:19:03,107 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 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 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 02:19:03,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:03,183 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2023-12-16 02:19:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:19:03,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2023-12-16 02:19:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:03,200 INFO L225 Difference]: With dead ends: 1389 [2023-12-16 02:19:03,201 INFO L226 Difference]: Without dead ends: 693 [2023-12-16 02:19:03,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:19:03,211 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:03,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:19:03,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-12-16 02:19:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2023-12-16 02:19:03,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 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 02:19:03,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2023-12-16 02:19:03,262 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 29 [2023-12-16 02:19:03,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:03,262 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2023-12-16 02:19:03,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 02:19:03,263 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2023-12-16 02:19:03,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-16 02:19:03,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:03,263 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] [2023-12-16 02:19:03,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 02:19:03,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:03,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1839709372, now seen corresponding path program 1 times [2023-12-16 02:19:03,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:03,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554669669] [2023-12-16 02:19:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:03,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:03,405 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 02:19:03,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:03,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554669669] [2023-12-16 02:19:03,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554669669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:03,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:03,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:19:03,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210474676] [2023-12-16 02:19:03,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:03,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:03,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:03,408 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 02:19:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:05,716 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2023-12-16 02:19:05,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:05,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2023-12-16 02:19:05,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:05,721 INFO L225 Difference]: With dead ends: 2075 [2023-12-16 02:19:05,721 INFO L226 Difference]: Without dead ends: 1383 [2023-12-16 02:19:05,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:19:05,723 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 746 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:05,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 435 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 02:19:05,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2023-12-16 02:19:05,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2023-12-16 02:19:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.5998552821997105) internal successors, (2211), 1382 states have internal predecessors, (2211), 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 02:19:05,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2211 transitions. [2023-12-16 02:19:05,780 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2211 transitions. Word has length 29 [2023-12-16 02:19:05,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:05,781 INFO L495 AbstractCegarLoop]: Abstraction has 1383 states and 2211 transitions. [2023-12-16 02:19:05,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 02:19:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2211 transitions. [2023-12-16 02:19:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 02:19:05,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:05,786 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:19:05,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 02:19:05,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:05,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:05,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1605243296, now seen corresponding path program 1 times [2023-12-16 02:19:05,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:05,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011728454] [2023-12-16 02:19:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:05,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:19:05,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:05,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011728454] [2023-12-16 02:19:05,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011728454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:05,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:05,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:19:05,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810060660] [2023-12-16 02:19:05,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:05,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:05,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:05,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:05,978 INFO L87 Difference]: Start difference. First operand 1383 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:19:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:08,176 INFO L93 Difference]: Finished difference Result 4145 states and 6630 transitions. [2023-12-16 02:19:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:08,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-16 02:19:08,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:08,185 INFO L225 Difference]: With dead ends: 4145 [2023-12-16 02:19:08,186 INFO L226 Difference]: Without dead ends: 2763 [2023-12-16 02:19:08,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:19:08,200 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 714 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:08,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 527 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 02:19:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2023-12-16 02:19:08,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2023-12-16 02:19:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.3504706734250542) internal successors, (3730), 2762 states have internal predecessors, (3730), 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 02:19:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3730 transitions. [2023-12-16 02:19:08,244 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3730 transitions. Word has length 94 [2023-12-16 02:19:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:08,245 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 3730 transitions. [2023-12-16 02:19:08,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:19:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3730 transitions. [2023-12-16 02:19:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 02:19:08,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:08,248 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:19:08,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 02:19:08,249 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:08,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:08,249 INFO L85 PathProgramCache]: Analyzing trace with hash -592258791, now seen corresponding path program 1 times [2023-12-16 02:19:08,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:08,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083598555] [2023-12-16 02:19:08,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:08,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 02:19:08,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:08,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083598555] [2023-12-16 02:19:08,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083598555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:08,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:08,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057358485] [2023-12-16 02:19:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:08,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:19:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:08,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:19:08,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:19:08,804 INFO L87 Difference]: Start difference. First operand 2763 states and 3730 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 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 02:19:11,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:11,793 INFO L93 Difference]: Finished difference Result 6905 states and 9073 transitions. [2023-12-16 02:19:11,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:19:11,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 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 212 [2023-12-16 02:19:11,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:11,807 INFO L225 Difference]: With dead ends: 6905 [2023-12-16 02:19:11,807 INFO L226 Difference]: Without dead ends: 4143 [2023-12-16 02:19:11,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 02:19:11,812 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 1873 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4085 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:11,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 638 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4085 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 02:19:11,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2023-12-16 02:19:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2023-12-16 02:19:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2467407049734427) internal successors, (5164), 4142 states have internal predecessors, (5164), 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 02:19:11,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5164 transitions. [2023-12-16 02:19:11,865 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5164 transitions. Word has length 212 [2023-12-16 02:19:11,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:11,866 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 5164 transitions. [2023-12-16 02:19:11,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 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 02:19:11,866 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5164 transitions. [2023-12-16 02:19:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-12-16 02:19:11,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:11,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:11,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 02:19:11,870 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:11,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:11,871 INFO L85 PathProgramCache]: Analyzing trace with hash 733870870, now seen corresponding path program 1 times [2023-12-16 02:19:11,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293680311] [2023-12-16 02:19:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:19:12,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:12,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293680311] [2023-12-16 02:19:12,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293680311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:12,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:12,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:12,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298982416] [2023-12-16 02:19:12,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:12,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:12,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:12,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:12,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:12,114 INFO L87 Difference]: Start difference. First operand 4143 states and 5164 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 02:19:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:14,374 INFO L93 Difference]: Finished difference Result 12425 states and 15489 transitions. [2023-12-16 02:19:14,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:14,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 328 [2023-12-16 02:19:14,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:14,396 INFO L225 Difference]: With dead ends: 12425 [2023-12-16 02:19:14,396 INFO L226 Difference]: Without dead ends: 8283 [2023-12-16 02:19:14,403 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 02:19:14,403 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 692 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 991 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 2983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 991 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:14,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 146 Invalid, 2983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [991 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 02:19:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2023-12-16 02:19:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7593. [2023-12-16 02:19:14,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7593 states, 7592 states have (on average 1.2413066385669125) internal successors, (9424), 7592 states have internal predecessors, (9424), 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 02:19:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7593 states to 7593 states and 9424 transitions. [2023-12-16 02:19:14,510 INFO L78 Accepts]: Start accepts. Automaton has 7593 states and 9424 transitions. Word has length 328 [2023-12-16 02:19:14,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:14,511 INFO L495 AbstractCegarLoop]: Abstraction has 7593 states and 9424 transitions. [2023-12-16 02:19:14,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 02:19:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 7593 states and 9424 transitions. [2023-12-16 02:19:14,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-12-16 02:19:14,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:14,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:14,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 02:19:14,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:14,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:14,516 INFO L85 PathProgramCache]: Analyzing trace with hash 149452572, now seen corresponding path program 1 times [2023-12-16 02:19:14,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:14,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660207308] [2023-12-16 02:19:14,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:14,859 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 02:19:14,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:14,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660207308] [2023-12-16 02:19:14,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660207308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:14,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:14,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:19:14,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631284841] [2023-12-16 02:19:14,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:14,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:14,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:14,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:14,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:14,861 INFO L87 Difference]: Start difference. First operand 7593 states and 9424 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 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 02:19:16,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:16,717 INFO L93 Difference]: Finished difference Result 20015 states and 25395 transitions. [2023-12-16 02:19:16,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:16,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 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 413 [2023-12-16 02:19:16,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:16,765 INFO L225 Difference]: With dead ends: 20015 [2023-12-16 02:19:16,765 INFO L226 Difference]: Without dead ends: 12423 [2023-12-16 02:19:16,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:19:16,798 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 397 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:16,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 596 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 02:19:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12423 states. [2023-12-16 02:19:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12423 to 12423. [2023-12-16 02:19:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12423 states, 12422 states have (on average 1.1904685235871841) internal successors, (14788), 12422 states have internal predecessors, (14788), 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 02:19:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12423 states to 12423 states and 14788 transitions. [2023-12-16 02:19:17,062 INFO L78 Accepts]: Start accepts. Automaton has 12423 states and 14788 transitions. Word has length 413 [2023-12-16 02:19:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:17,063 INFO L495 AbstractCegarLoop]: Abstraction has 12423 states and 14788 transitions. [2023-12-16 02:19:17,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 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 02:19:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 12423 states and 14788 transitions. [2023-12-16 02:19:17,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2023-12-16 02:19:17,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:17,072 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:17,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 02:19:17,072 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:17,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:17,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1740822029, now seen corresponding path program 1 times [2023-12-16 02:19:17,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:17,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621537488] [2023-12-16 02:19:17,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:17,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-16 02:19:17,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:17,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621537488] [2023-12-16 02:19:17,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621537488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:17,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:17,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:17,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15647441] [2023-12-16 02:19:17,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:17,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:17,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:17,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:17,537 INFO L87 Difference]: Start difference. First operand 12423 states and 14788 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 02:19:19,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:19,451 INFO L93 Difference]: Finished difference Result 28985 states and 34911 transitions. [2023-12-16 02:19:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:19,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 414 [2023-12-16 02:19:19,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:19,506 INFO L225 Difference]: With dead ends: 28985 [2023-12-16 02:19:19,506 INFO L226 Difference]: Without dead ends: 16563 [2023-12-16 02:19:19,535 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 02:19:19,538 INFO L413 NwaCegarLoop]: 1297 mSDtfsCounter, 663 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:19,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1303 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 02:19:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16563 states. [2023-12-16 02:19:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16563 to 16563. [2023-12-16 02:19:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16563 states, 16562 states have (on average 1.1747373505615264) internal successors, (19456), 16562 states have internal predecessors, (19456), 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 02:19:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16563 states to 16563 states and 19456 transitions. [2023-12-16 02:19:19,703 INFO L78 Accepts]: Start accepts. Automaton has 16563 states and 19456 transitions. Word has length 414 [2023-12-16 02:19:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:19,704 INFO L495 AbstractCegarLoop]: Abstraction has 16563 states and 19456 transitions. [2023-12-16 02:19:19,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 02:19:19,704 INFO L276 IsEmpty]: Start isEmpty. Operand 16563 states and 19456 transitions. [2023-12-16 02:19:19,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-16 02:19:19,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:19,707 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:19,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 02:19:19,707 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:19,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1000645211, now seen corresponding path program 1 times [2023-12-16 02:19:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:19,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978800307] [2023-12-16 02:19:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:19,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:19:20,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:20,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978800307] [2023-12-16 02:19:20,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978800307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:20,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:20,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:20,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614992108] [2023-12-16 02:19:20,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:20,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:20,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:20,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:20,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:20,097 INFO L87 Difference]: Start difference. First operand 16563 states and 19456 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 02:19:22,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:22,237 INFO L93 Difference]: Finished difference Result 38645 states and 45451 transitions. [2023-12-16 02:19:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:22,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 435 [2023-12-16 02:19:22,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:22,268 INFO L225 Difference]: With dead ends: 38645 [2023-12-16 02:19:22,269 INFO L226 Difference]: Without dead ends: 22083 [2023-12-16 02:19:22,286 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 02:19:22,286 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 586 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:22,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1074 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 02:19:22,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22083 states. [2023-12-16 02:19:22,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22083 to 21393. [2023-12-16 02:19:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21393 states, 21392 states have (on average 1.1574420344053853) internal successors, (24760), 21392 states have internal predecessors, (24760), 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 02:19:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21393 states to 21393 states and 24760 transitions. [2023-12-16 02:19:22,506 INFO L78 Accepts]: Start accepts. Automaton has 21393 states and 24760 transitions. Word has length 435 [2023-12-16 02:19:22,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:22,506 INFO L495 AbstractCegarLoop]: Abstraction has 21393 states and 24760 transitions. [2023-12-16 02:19:22,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 02:19:22,507 INFO L276 IsEmpty]: Start isEmpty. Operand 21393 states and 24760 transitions. [2023-12-16 02:19:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-16 02:19:22,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:22,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:22,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 02:19:22,512 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:22,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -565142332, now seen corresponding path program 1 times [2023-12-16 02:19:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:22,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98906567] [2023-12-16 02:19:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:22,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:19:23,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:23,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98906567] [2023-12-16 02:19:23,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98906567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:23,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:23,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868742527] [2023-12-16 02:19:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:23,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:23,067 INFO L87 Difference]: Start difference. First operand 21393 states and 24760 transitions. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 02:19:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:25,433 INFO L93 Difference]: Finished difference Result 47615 states and 55321 transitions. [2023-12-16 02:19:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:25,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 442 [2023-12-16 02:19:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:25,472 INFO L225 Difference]: With dead ends: 47615 [2023-12-16 02:19:25,472 INFO L226 Difference]: Without dead ends: 26223 [2023-12-16 02:19:25,494 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 02:19:25,495 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 583 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:25,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 634 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 02:19:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26223 states. [2023-12-16 02:19:25,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26223 to 26223. [2023-12-16 02:19:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26223 states, 26222 states have (on average 1.1478910838227443) internal successors, (30100), 26222 states have internal predecessors, (30100), 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 02:19:25,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26223 states to 26223 states and 30100 transitions. [2023-12-16 02:19:25,758 INFO L78 Accepts]: Start accepts. Automaton has 26223 states and 30100 transitions. Word has length 442 [2023-12-16 02:19:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:25,759 INFO L495 AbstractCegarLoop]: Abstraction has 26223 states and 30100 transitions. [2023-12-16 02:19:25,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 02:19:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 26223 states and 30100 transitions. [2023-12-16 02:19:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2023-12-16 02:19:25,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:25,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:19:25,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 02:19:25,763 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:25,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:25,763 INFO L85 PathProgramCache]: Analyzing trace with hash -266203961, now seen corresponding path program 1 times [2023-12-16 02:19:25,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:25,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945154997] [2023-12-16 02:19:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:25,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-16 02:19:26,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:26,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945154997] [2023-12-16 02:19:26,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945154997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:26,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:26,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191818084] [2023-12-16 02:19:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:26,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:19:26,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:19:26,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:19:26,118 INFO L87 Difference]: Start difference. First operand 26223 states and 30100 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 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 02:19:28,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:28,196 INFO L93 Difference]: Finished difference Result 53878 states and 61680 transitions. [2023-12-16 02:19:28,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:19:28,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 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 468 [2023-12-16 02:19:28,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:28,231 INFO L225 Difference]: With dead ends: 53878 [2023-12-16 02:19:28,231 INFO L226 Difference]: Without dead ends: 28293 [2023-12-16 02:19:28,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:19:28,250 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 513 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:28,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 634 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 02:19:28,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28293 states. [2023-12-16 02:19:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28293 to 28293. [2023-12-16 02:19:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28293 states, 28292 states have (on average 1.1045878693623639) internal successors, (31251), 28292 states have internal predecessors, (31251), 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 02:19:28,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28293 states to 28293 states and 31251 transitions. [2023-12-16 02:19:28,524 INFO L78 Accepts]: Start accepts. Automaton has 28293 states and 31251 transitions. Word has length 468 [2023-12-16 02:19:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:28,525 INFO L495 AbstractCegarLoop]: Abstraction has 28293 states and 31251 transitions. [2023-12-16 02:19:28,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 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 02:19:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 28293 states and 31251 transitions. [2023-12-16 02:19:28,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2023-12-16 02:19:28,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:28,678 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:28,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 02:19:28,678 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:28,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:28,679 INFO L85 PathProgramCache]: Analyzing trace with hash 109945192, now seen corresponding path program 1 times [2023-12-16 02:19:28,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:28,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637944024] [2023-12-16 02:19:28,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:28,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-16 02:19:29,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637944024] [2023-12-16 02:19:29,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637944024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:29,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:29,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:29,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053723547] [2023-12-16 02:19:29,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:29,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:29,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:29,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:29,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:29,452 INFO L87 Difference]: Start difference. First operand 28293 states and 31251 transitions. Second operand has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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 02:19:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:31,410 INFO L93 Difference]: Finished difference Result 63485 states and 70818 transitions. [2023-12-16 02:19:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:31,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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 1036 [2023-12-16 02:19:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:31,520 INFO L225 Difference]: With dead ends: 63485 [2023-12-16 02:19:31,520 INFO L226 Difference]: Without dead ends: 36573 [2023-12-16 02:19:31,572 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 02:19:31,573 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 584 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:31,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1132 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 02:19:31,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36573 states. [2023-12-16 02:19:32,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36573 to 36573. [2023-12-16 02:19:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36573 states, 36572 states have (on average 1.0901235918188779) internal successors, (39868), 36572 states have internal predecessors, (39868), 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 02:19:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36573 states to 36573 states and 39868 transitions. [2023-12-16 02:19:32,094 INFO L78 Accepts]: Start accepts. Automaton has 36573 states and 39868 transitions. Word has length 1036 [2023-12-16 02:19:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:32,094 INFO L495 AbstractCegarLoop]: Abstraction has 36573 states and 39868 transitions. [2023-12-16 02:19:32,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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 02:19:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 36573 states and 39868 transitions. [2023-12-16 02:19:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2023-12-16 02:19:32,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:32,103 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:32,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 02:19:32,104 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:32,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:32,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1956355593, now seen corresponding path program 1 times [2023-12-16 02:19:32,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:32,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878099491] [2023-12-16 02:19:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:32,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 502 proven. 330 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 02:19:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:33,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878099491] [2023-12-16 02:19:33,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878099491] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:19:33,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440479777] [2023-12-16 02:19:33,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:33,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:19:33,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:19:33,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:19:33,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 02:19:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:34,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:19:34,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:19:34,156 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2023-12-16 02:19:34,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:19:34,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440479777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:34,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 02:19:34,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-12-16 02:19:34,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006391346] [2023-12-16 02:19:34,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:34,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:34,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:34,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:34,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:19:34,159 INFO L87 Difference]: Start difference. First operand 36573 states and 39868 transitions. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 02:19:36,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:36,314 INFO L93 Difference]: Finished difference Result 81425 states and 90061 transitions. [2023-12-16 02:19:36,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:36,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 1038 [2023-12-16 02:19:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:36,360 INFO L225 Difference]: With dead ends: 81425 [2023-12-16 02:19:36,361 INFO L226 Difference]: Without dead ends: 40713 [2023-12-16 02:19:36,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:19:36,389 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 680 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:36,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1094 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 02:19:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40713 states. [2023-12-16 02:19:36,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40713 to 38643. [2023-12-16 02:19:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38643 states, 38642 states have (on average 1.0539309559546608) internal successors, (40726), 38642 states have internal predecessors, (40726), 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 02:19:36,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38643 states to 38643 states and 40726 transitions. [2023-12-16 02:19:36,741 INFO L78 Accepts]: Start accepts. Automaton has 38643 states and 40726 transitions. Word has length 1038 [2023-12-16 02:19:36,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:36,742 INFO L495 AbstractCegarLoop]: Abstraction has 38643 states and 40726 transitions. [2023-12-16 02:19:36,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 02:19:36,742 INFO L276 IsEmpty]: Start isEmpty. Operand 38643 states and 40726 transitions. [2023-12-16 02:19:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2023-12-16 02:19:36,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:36,754 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:36,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 02:19:36,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 02:19:36,976 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:36,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:36,977 INFO L85 PathProgramCache]: Analyzing trace with hash -628801159, now seen corresponding path program 1 times [2023-12-16 02:19:36,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:36,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026098392] [2023-12-16 02:19:36,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:36,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 500 proven. 650 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-16 02:19:38,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:38,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026098392] [2023-12-16 02:19:38,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026098392] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:19:38,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476727828] [2023-12-16 02:19:38,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:38,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:19:38,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:19:38,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:19:38,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 02:19:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:38,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:19:38,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:19:38,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2023-12-16 02:19:38,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:19:38,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476727828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:38,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 02:19:38,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-12-16 02:19:38,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28813683] [2023-12-16 02:19:38,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:38,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:38,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:38,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:38,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 02:19:38,959 INFO L87 Difference]: Start difference. First operand 38643 states and 40726 transitions. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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 02:19:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:41,393 INFO L93 Difference]: Finished difference Result 89015 states and 94694 transitions. [2023-12-16 02:19:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:41,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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 1117 [2023-12-16 02:19:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:41,452 INFO L225 Difference]: With dead ends: 89015 [2023-12-16 02:19:41,452 INFO L226 Difference]: Without dead ends: 51063 [2023-12-16 02:19:41,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1123 GetRequests, 1117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 02:19:41,473 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 663 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:41,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 133 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 02:19:41,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51063 states. [2023-12-16 02:19:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51063 to 51063. [2023-12-16 02:19:41,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51063 states, 51062 states have (on average 1.058693353178489) internal successors, (54059), 51062 states have internal predecessors, (54059), 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 02:19:42,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51063 states to 51063 states and 54059 transitions. [2023-12-16 02:19:42,025 INFO L78 Accepts]: Start accepts. Automaton has 51063 states and 54059 transitions. Word has length 1117 [2023-12-16 02:19:42,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:42,026 INFO L495 AbstractCegarLoop]: Abstraction has 51063 states and 54059 transitions. [2023-12-16 02:19:42,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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 02:19:42,026 INFO L276 IsEmpty]: Start isEmpty. Operand 51063 states and 54059 transitions. [2023-12-16 02:19:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1188 [2023-12-16 02:19:42,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:42,056 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:42,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 02:19:42,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-16 02:19:42,263 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:42,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 970870186, now seen corresponding path program 1 times [2023-12-16 02:19:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:42,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013931287] [2023-12-16 02:19:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:42,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 634 proven. 2 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2023-12-16 02:19:43,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:43,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013931287] [2023-12-16 02:19:43,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013931287] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:19:43,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61066232] [2023-12-16 02:19:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:43,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:19:43,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:19:43,458 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:19:43,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 02:19:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:43,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:19:43,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:19:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1259 trivial. 0 not checked. [2023-12-16 02:19:43,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:19:43,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61066232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:43,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 02:19:43,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 02:19:43,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806865274] [2023-12-16 02:19:43,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:43,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:43,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:43,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:43,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:19:43,808 INFO L87 Difference]: Start difference. First operand 51063 states and 54059 transitions. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 02:19:45,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:45,946 INFO L93 Difference]: Finished difference Result 125585 states and 133577 transitions. [2023-12-16 02:19:45,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:45,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 1187 [2023-12-16 02:19:45,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:46,041 INFO L225 Difference]: With dead ends: 125585 [2023-12-16 02:19:46,041 INFO L226 Difference]: Without dead ends: 75213 [2023-12-16 02:19:46,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:19:46,067 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 693 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:46,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 894 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 02:19:46,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75213 states. [2023-12-16 02:19:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75213 to 74523. [2023-12-16 02:19:46,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74523 states, 74522 states have (on average 1.0532996967338504) internal successors, (78494), 74522 states have internal predecessors, (78494), 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 02:19:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74523 states to 74523 states and 78494 transitions. [2023-12-16 02:19:47,060 INFO L78 Accepts]: Start accepts. Automaton has 74523 states and 78494 transitions. Word has length 1187 [2023-12-16 02:19:47,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:47,060 INFO L495 AbstractCegarLoop]: Abstraction has 74523 states and 78494 transitions. [2023-12-16 02:19:47,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 02:19:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand 74523 states and 78494 transitions. [2023-12-16 02:19:47,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1209 [2023-12-16 02:19:47,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:47,182 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:47,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 02:19:47,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:19:47,383 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:47,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1101723102, now seen corresponding path program 1 times [2023-12-16 02:19:47,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:47,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927747503] [2023-12-16 02:19:47,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:47,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1708 backedges. 918 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2023-12-16 02:19:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:47,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927747503] [2023-12-16 02:19:47,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927747503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:47,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:47,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861950747] [2023-12-16 02:19:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:47,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:47,968 INFO L87 Difference]: Start difference. First operand 74523 states and 78494 transitions. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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 02:19:50,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:50,030 INFO L93 Difference]: Finished difference Result 165605 states and 175618 transitions. [2023-12-16 02:19:50,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:50,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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 1208 [2023-12-16 02:19:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:50,144 INFO L225 Difference]: With dead ends: 165605 [2023-12-16 02:19:50,144 INFO L226 Difference]: Without dead ends: 86253 [2023-12-16 02:19:50,182 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 02:19:50,183 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 625 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:50,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 934 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 02:19:50,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86253 states. [2023-12-16 02:19:51,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86253 to 84873. [2023-12-16 02:19:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84873 states, 84872 states have (on average 1.0475893109623904) internal successors, (88911), 84872 states have internal predecessors, (88911), 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 02:19:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84873 states to 84873 states and 88911 transitions. [2023-12-16 02:19:51,143 INFO L78 Accepts]: Start accepts. Automaton has 84873 states and 88911 transitions. Word has length 1208 [2023-12-16 02:19:51,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:51,144 INFO L495 AbstractCegarLoop]: Abstraction has 84873 states and 88911 transitions. [2023-12-16 02:19:51,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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 02:19:51,144 INFO L276 IsEmpty]: Start isEmpty. Operand 84873 states and 88911 transitions. [2023-12-16 02:19:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1352 [2023-12-16 02:19:51,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:51,164 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:51,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 02:19:51,164 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:51,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash -690037201, now seen corresponding path program 1 times [2023-12-16 02:19:51,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:51,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956821561] [2023-12-16 02:19:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:51,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1867 backedges. 1293 proven. 330 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-12-16 02:19:53,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956821561] [2023-12-16 02:19:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956821561] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:19:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89979135] [2023-12-16 02:19:53,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:53,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:19:53,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:19:53,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:19:53,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 02:19:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:53,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:19:53,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:19:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1867 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2023-12-16 02:19:53,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:19:53,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89979135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:53,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 02:19:53,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-12-16 02:19:53,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092845345] [2023-12-16 02:19:53,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:53,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:53,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:53,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:53,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:19:53,410 INFO L87 Difference]: Start difference. First operand 84873 states and 88911 transitions. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 02:19:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:19:55,309 INFO L93 Difference]: Finished difference Result 168365 states and 176409 transitions. [2023-12-16 02:19:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:55,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 1351 [2023-12-16 02:19:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:19:55,420 INFO L225 Difference]: With dead ends: 168365 [2023-12-16 02:19:55,420 INFO L226 Difference]: Without dead ends: 84183 [2023-12-16 02:19:55,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1357 GetRequests, 1350 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:19:55,465 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 729 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:55,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 886 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 02:19:55,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84183 states. [2023-12-16 02:19:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84183 to 81423. [2023-12-16 02:19:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81423 states, 81422 states have (on average 1.0314656972317064) internal successors, (83984), 81422 states have internal predecessors, (83984), 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 02:19:56,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81423 states to 81423 states and 83984 transitions. [2023-12-16 02:19:56,663 INFO L78 Accepts]: Start accepts. Automaton has 81423 states and 83984 transitions. Word has length 1351 [2023-12-16 02:19:56,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:19:56,664 INFO L495 AbstractCegarLoop]: Abstraction has 81423 states and 83984 transitions. [2023-12-16 02:19:56,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 02:19:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 81423 states and 83984 transitions. [2023-12-16 02:19:56,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1414 [2023-12-16 02:19:56,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:19:56,695 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:56,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-16 02:19:56,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-16 02:19:56,901 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:19:56,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:19:56,902 INFO L85 PathProgramCache]: Analyzing trace with hash -514052277, now seen corresponding path program 1 times [2023-12-16 02:19:56,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:19:56,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631680428] [2023-12-16 02:19:56,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:19:56,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:19:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:19:58,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1688 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 986 trivial. 0 not checked. [2023-12-16 02:19:58,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:19:58,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631680428] [2023-12-16 02:19:58,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631680428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:19:58,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:19:58,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:19:58,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173379046] [2023-12-16 02:19:58,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:19:58,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:19:58,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:19:58,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:19:58,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:19:58,372 INFO L87 Difference]: Start difference. First operand 81423 states and 83984 transitions. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 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) Received shutdown request... [2023-12-16 02:19:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:19:59,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 02:19:59,653 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 485 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:19:59,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 740 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 02:19:59,654 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:19:59,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 02:19:59,655 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (81423states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (36975 states constructed, input type IntersectNwa). [2023-12-16 02:19:59,658 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:19:59,660 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:19:59,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:19:59 BoogieIcfgContainer [2023-12-16 02:19:59,661 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:19:59,662 INFO L158 Benchmark]: Toolchain (without parser) took 60944.96ms. Allocated memory was 312.5MB in the beginning and 4.8GB in the end (delta: 4.5GB). Free memory was 255.7MB in the beginning and 3.4GB in the end (delta: -3.1GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 02:19:59,662 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:19:59,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 974.71ms. Allocated memory is still 312.5MB. Free memory was 255.7MB in the beginning and 137.7MB in the end (delta: 118.0MB). Peak memory consumption was 118.5MB. Max. memory is 8.0GB. [2023-12-16 02:19:59,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 209.39ms. Allocated memory is still 312.5MB. Free memory was 137.7MB in the beginning and 94.2MB in the end (delta: 43.5MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-16 02:19:59,662 INFO L158 Benchmark]: Boogie Preprocessor took 318.66ms. Allocated memory is still 312.5MB. Free memory was 94.2MB in the beginning and 232.0MB in the end (delta: -137.9MB). Peak memory consumption was 60.3MB. Max. memory is 8.0GB. [2023-12-16 02:19:59,662 INFO L158 Benchmark]: RCFGBuilder took 2570.23ms. Allocated memory was 312.5MB in the beginning and 529.5MB in the end (delta: 217.1MB). Free memory was 232.0MB in the beginning and 339.5MB in the end (delta: -107.5MB). Peak memory consumption was 177.2MB. Max. memory is 8.0GB. [2023-12-16 02:19:59,663 INFO L158 Benchmark]: TraceAbstraction took 56865.37ms. Allocated memory was 529.5MB in the beginning and 4.8GB in the end (delta: 4.3GB). Free memory was 338.5MB in the beginning and 3.4GB in the end (delta: -3.0GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 02:19:59,664 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 974.71ms. Allocated memory is still 312.5MB. Free memory was 255.7MB in the beginning and 137.7MB in the end (delta: 118.0MB). Peak memory consumption was 118.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 209.39ms. Allocated memory is still 312.5MB. Free memory was 137.7MB in the beginning and 94.2MB in the end (delta: 43.5MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 318.66ms. Allocated memory is still 312.5MB. Free memory was 94.2MB in the beginning and 232.0MB in the end (delta: -137.9MB). Peak memory consumption was 60.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2570.23ms. Allocated memory was 312.5MB in the beginning and 529.5MB in the end (delta: 217.1MB). Free memory was 232.0MB in the beginning and 339.5MB in the end (delta: -107.5MB). Peak memory consumption was 177.2MB. Max. memory is 8.0GB. * TraceAbstraction took 56865.37ms. Allocated memory was 529.5MB in the beginning and 4.8GB in the end (delta: 4.3GB). Free memory was 338.5MB in the beginning and 3.4GB in the end (delta: -3.0GB). Peak memory consumption was 1.4GB. 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: 109]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 109). Cancelled while NwaCegarLoop was constructing difference of abstraction (81423states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (36975 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 695 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.8s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 35.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11226 SdHoareTripleChecker+Valid, 30.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11226 mSDsluCounter, 13117 SdHoareTripleChecker+Invalid, 25.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 6773 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33895 IncrementalHoareTripleChecker+Invalid, 40668 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6773 mSolverCounterUnsat, 13007 mSDtfsCounter, 33895 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4755 GetRequests, 4716 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84873occurred in iteration=15, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 8280 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 15907 NumberOfCodeBlocks, 15907 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 15886 ConstructedInterpolants, 0 QuantifiedInterpolants, 46865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5417 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 21 InterpolantComputations, 17 PerfectInterpolantSequences, 15032/16344 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